diff --git a/cmd/serv.go b/cmd/serv.go
index b00c3962f41fb..06561f348a43e 100644
--- a/cmd/serv.go
+++ b/cmd/serv.go
@@ -43,7 +43,7 @@ const (
 var CmdServ = cli.Command{
 	Name:        "serv",
 	Usage:       "This command should only be called by SSH shell",
-	Description: `Serv provide access auth for repositories`,
+	Description: "Serv provides access auth for repositories",
 	Action:      runServ,
 	Flags: []cli.Flag{
 		cli.BoolFlag{
diff --git a/models/issues/reaction.go b/models/issues/reaction.go
index 87d6ff431054a..e7295c8af8190 100644
--- a/models/issues/reaction.go
+++ b/models/issues/reaction.go
@@ -181,6 +181,10 @@ func createReaction(ctx context.Context, opts *ReactionOptions) (*Reaction, erro
 		Reaction:  opts.Type,
 		UserID:    opts.DoerID,
 	}
+	if findOpts.CommentID == 0 {
+		// explicit search of Issue Reactions where CommentID = 0
+		findOpts.CommentID = -1
+	}
 
 	existingR, _, err := FindReactions(ctx, findOpts)
 	if err != nil {
@@ -256,16 +260,23 @@ func DeleteReaction(ctx context.Context, opts *ReactionOptions) error {
 		CommentID: opts.CommentID,
 	}
 
-	_, err := db.GetEngine(ctx).Where("original_author_id = 0").Delete(reaction)
+	sess := db.GetEngine(ctx).Where("original_author_id = 0")
+	if opts.CommentID == -1 {
+		reaction.CommentID = 0
+		sess.MustCols("comment_id")
+	}
+
+	_, err := sess.Delete(reaction)
 	return err
 }
 
 // DeleteIssueReaction deletes a reaction on issue.
 func DeleteIssueReaction(doerID, issueID int64, content string) error {
 	return DeleteReaction(db.DefaultContext, &ReactionOptions{
-		Type:    content,
-		DoerID:  doerID,
-		IssueID: issueID,
+		Type:      content,
+		DoerID:    doerID,
+		IssueID:   issueID,
+		CommentID: -1,
 	})
 }
 
diff --git a/modules/git/parse_nogogit.go b/modules/git/parse_nogogit.go
index 6dc4900992867..c8f0f994fc3a6 100644
--- a/modules/git/parse_nogogit.go
+++ b/modules/git/parse_nogogit.go
@@ -44,7 +44,7 @@ func parseTreeEntries(data []byte, ptree *Tree) ([]*TreeEntry, error) {
 		case "160000":
 			entry.entryMode = EntryModeCommit
 			pos += 14 // skip over "160000 object "
-		case "040000":
+		case "040000", "040755": // git uses 040000 for tree object, but some users may get 040755 for unknown reasons
 			entry.entryMode = EntryModeTree
 			pos += 12 // skip over "040000 tree "
 		default:
@@ -119,7 +119,7 @@ loop:
 			entry.entryMode = EntryModeSymlink
 		case "160000":
 			entry.entryMode = EntryModeCommit
-		case "40000":
+		case "40000", "40755": // git uses 40000 for tree object, but some users may get 40755 for unknown reasons
 			entry.entryMode = EntryModeTree
 		default:
 			log.Debug("Unknown mode: %v", string(mode))
diff --git a/modules/repository/create.go b/modules/repository/create.go
index 7a25323def921..966a6a2f211ed 100644
--- a/modules/repository/create.go
+++ b/modules/repository/create.go
@@ -10,7 +10,6 @@ import (
 	"os"
 	"path"
 	"strings"
-	"unicode/utf8"
 
 	"code.gitea.io/gitea/models"
 	activities_model "code.gitea.io/gitea/models/activities"
@@ -337,13 +336,6 @@ func CheckDaemonExportOK(ctx context.Context, repo *repo_model.Repository) error
 func UpdateRepository(ctx context.Context, repo *repo_model.Repository, visibilityChanged bool) (err error) {
 	repo.LowerName = strings.ToLower(repo.Name)
 
-	if utf8.RuneCountInString(repo.Description) > 255 {
-		repo.Description = string([]rune(repo.Description)[:255])
-	}
-	if utf8.RuneCountInString(repo.Website) > 255 {
-		repo.Website = string([]rune(repo.Website)[:255])
-	}
-
 	e := db.GetEngine(ctx)
 
 	if _, err = e.ID(repo.ID).AllCols().Update(repo); err != nil {
diff --git a/modules/structs/repo.go b/modules/structs/repo.go
index 6a5736898d139..d3833105d7269 100644
--- a/modules/structs/repo.go
+++ b/modules/structs/repo.go
@@ -111,7 +111,7 @@ type CreateRepoOption struct {
 	// unique: true
 	Name string `json:"name" binding:"Required;AlphaDashDot;MaxSize(100)"`
 	// Description of the repository to create
-	Description string `json:"description" binding:"MaxSize(255)"`
+	Description string `json:"description" binding:"MaxSize(2048)"`
 	// Whether the repository is private
 	Private bool `json:"private"`
 	// Label-Set to use
@@ -140,9 +140,9 @@ type EditRepoOption struct {
 	// unique: true
 	Name *string `json:"name,omitempty" binding:"OmitEmpty;AlphaDashDot;MaxSize(100);"`
 	// a short description of the repository.
-	Description *string `json:"description,omitempty" binding:"MaxSize(255)"`
+	Description *string `json:"description,omitempty" binding:"MaxSize(2048)"`
 	// a URL with more information about the repository.
-	Website *string `json:"website,omitempty" binding:"MaxSize(255)"`
+	Website *string `json:"website,omitempty" binding:"MaxSize(1024)"`
 	// either `true` to make the repository private or `false` to make it public.
 	// Note: you will get a 422 error if the organization restricts changing repository visibility to organization
 	// owners and a non-owner tries to change the value of private.
@@ -208,7 +208,7 @@ type GenerateRepoOption struct {
 	// Default branch of the new repository
 	DefaultBranch string `json:"default_branch"`
 	// Description of the repository to create
-	Description string `json:"description" binding:"MaxSize(255)"`
+	Description string `json:"description" binding:"MaxSize(2048)"`
 	// Whether the repository is private
 	Private bool `json:"private"`
 	// include git content of default branch in template repo
@@ -316,7 +316,7 @@ type MigrateRepoOptions struct {
 	LFS            bool   `json:"lfs"`
 	LFSEndpoint    string `json:"lfs_endpoint"`
 	Private        bool   `json:"private"`
-	Description    string `json:"description" binding:"MaxSize(255)"`
+	Description    string `json:"description" binding:"MaxSize(2048)"`
 	Wiki           bool   `json:"wiki"`
 	Milestones     bool   `json:"milestones"`
 	Labels         bool   `json:"labels"`
diff --git a/modules/templates/helper.go b/modules/templates/helper.go
index 2879d68e3b888..a8e4075248dd8 100644
--- a/modules/templates/helper.go
+++ b/modules/templates/helper.go
@@ -377,17 +377,17 @@ func NewFuncMap() []template.FuncMap {
 			return ""
 		},
 		"RenderLabels": func(labels []*issues_model.Label, repoLink string) template.HTML {
-			html := `<span class="labels-list">`
+			htmlCode := `<span class="labels-list">`
 			for _, label := range labels {
 				// Protect against nil value in labels - shouldn't happen but would cause a panic if so
 				if label == nil {
 					continue
 				}
-				html += fmt.Sprintf("<a href='%s/issues?labels=%d' class='ui label' style='color: %s !important; background-color: %s !important'>%s</a> ",
-					repoLink, label.ID, label.ForegroundColor(), label.Color, RenderEmoji(label.Name))
+				htmlCode += fmt.Sprintf("<a href='%s/issues?labels=%d' class='ui label' style='color: %s !important; background-color: %s !important' title='%s'>%s</a> ",
+					repoLink, label.ID, label.ForegroundColor(), label.Color, html.EscapeString(label.Description), RenderEmoji(label.Name))
 			}
-			html += "</span>"
-			return template.HTML(html)
+			htmlCode += "</span>"
+			return template.HTML(htmlCode)
 		},
 		"MermaidMaxSourceCharacters": func() int {
 			return setting.MermaidMaxSourceCharacters
diff --git a/routers/web/repo/compare.go b/routers/web/repo/compare.go
index e35af31724fdf..e7e68d3c5e92d 100644
--- a/routers/web/repo/compare.go
+++ b/routers/web/repo/compare.go
@@ -112,17 +112,17 @@ func setCsvCompareContext(ctx *context.Context) {
 		Error    string
 	}
 
-	ctx.Data["CreateCsvDiff"] = func(diffFile *gitdiff.DiffFile, baseCommit, headCommit *git.Commit) CsvDiffResult {
-		if diffFile == nil || baseCommit == nil || headCommit == nil {
+	ctx.Data["CreateCsvDiff"] = func(diffFile *gitdiff.DiffFile, baseBlob, headBlob *git.Blob) CsvDiffResult {
+		if diffFile == nil {
 			return CsvDiffResult{nil, ""}
 		}
 
 		errTooLarge := errors.New(ctx.Locale.Tr("repo.error.csv.too_large"))
 
-		csvReaderFromCommit := func(ctx *markup.RenderContext, c *git.Commit) (*csv.Reader, io.Closer, error) {
-			blob, err := c.GetBlobByPath(diffFile.Name)
-			if err != nil {
-				return nil, nil, err
+		csvReaderFromCommit := func(ctx *markup.RenderContext, blob *git.Blob) (*csv.Reader, io.Closer, error) {
+			if blob == nil {
+				// It's ok for blob to be nil (file added or deleted)
+				return nil, nil, nil
 			}
 
 			if setting.UI.CSV.MaxFileSize != 0 && setting.UI.CSV.MaxFileSize < blob.Size() {
@@ -138,28 +138,28 @@ func setCsvCompareContext(ctx *context.Context) {
 			return csvReader, reader, err
 		}
 
-		baseReader, baseBlobCloser, err := csvReaderFromCommit(&markup.RenderContext{Ctx: ctx, RelativePath: diffFile.OldName}, baseCommit)
+		baseReader, baseBlobCloser, err := csvReaderFromCommit(&markup.RenderContext{Ctx: ctx, RelativePath: diffFile.OldName}, baseBlob)
 		if baseBlobCloser != nil {
 			defer baseBlobCloser.Close()
 		}
-		if err == errTooLarge {
-			return CsvDiffResult{nil, err.Error()}
-		}
 		if err != nil {
-			log.Error("CreateCsvDiff error whilst creating baseReader from file %s in commit %s in %s: %v", diffFile.Name, baseCommit.ID.String(), ctx.Repo.Repository.Name, err)
-			return CsvDiffResult{nil, "unable to load file from base commit"}
+			if err == errTooLarge {
+				return CsvDiffResult{nil, err.Error()}
+			}
+			log.Error("error whilst creating csv.Reader from file %s in base commit %s in %s: %v", diffFile.Name, baseBlob.ID.String(), ctx.Repo.Repository.Name, err)
+			return CsvDiffResult{nil, "unable to load file"}
 		}
 
-		headReader, headBlobCloser, err := csvReaderFromCommit(&markup.RenderContext{Ctx: ctx, RelativePath: diffFile.Name}, headCommit)
+		headReader, headBlobCloser, err := csvReaderFromCommit(&markup.RenderContext{Ctx: ctx, RelativePath: diffFile.Name}, headBlob)
 		if headBlobCloser != nil {
 			defer headBlobCloser.Close()
 		}
-		if err == errTooLarge {
-			return CsvDiffResult{nil, err.Error()}
-		}
 		if err != nil {
-			log.Error("CreateCsvDiff error whilst creating headReader from file %s in commit %s in %s: %v", diffFile.Name, headCommit.ID.String(), ctx.Repo.Repository.Name, err)
-			return CsvDiffResult{nil, "unable to load file from head commit"}
+			if err == errTooLarge {
+				return CsvDiffResult{nil, err.Error()}
+			}
+			log.Error("error whilst creating csv.Reader from file %s in head commit %s in %s: %v", diffFile.Name, headBlob.ID.String(), ctx.Repo.Repository.Name, err)
+			return CsvDiffResult{nil, "unable to load file"}
 		}
 
 		sections, err := gitdiff.CreateCsvDiff(diffFile, baseReader, headReader)
diff --git a/services/forms/repo_form.go b/services/forms/repo_form.go
index 4eb20d297f203..c1e9cb3197c0b 100644
--- a/services/forms/repo_form.go
+++ b/services/forms/repo_form.go
@@ -34,7 +34,7 @@ type CreateRepoForm struct {
 	UID           int64  `binding:"Required"`
 	RepoName      string `binding:"Required;AlphaDashDot;MaxSize(100)"`
 	Private       bool
-	Description   string `binding:"MaxSize(255)"`
+	Description   string `binding:"MaxSize(2048)"`
 	DefaultBranch string `binding:"GitRefName;MaxSize(100)"`
 	AutoInit      bool
 	Gitignores    string
@@ -76,7 +76,7 @@ type MigrateRepoForm struct {
 	LFS            bool   `json:"lfs"`
 	LFSEndpoint    string `json:"lfs_endpoint"`
 	Private        bool   `json:"private"`
-	Description    string `json:"description" binding:"MaxSize(255)"`
+	Description    string `json:"description" binding:"MaxSize(2048)"`
 	Wiki           bool   `json:"wiki"`
 	Milestones     bool   `json:"milestones"`
 	Labels         bool   `json:"labels"`
@@ -116,8 +116,8 @@ func ParseRemoteAddr(remoteAddr, authUsername, authPassword string) (string, err
 // RepoSettingForm form for changing repository settings
 type RepoSettingForm struct {
 	RepoName               string `binding:"Required;AlphaDashDot;MaxSize(100)"`
-	Description            string `binding:"MaxSize(255)"`
-	Website                string `binding:"ValidUrl;MaxSize(255)"`
+	Description            string `binding:"MaxSize(2048)"`
+	Website                string `binding:"ValidUrl;MaxSize(1024)"`
 	Interval               string
 	MirrorAddress          string
 	MirrorUsername         string
diff --git a/templates/repo/diff/box.tmpl b/templates/repo/diff/box.tmpl
index 35b8b3956da74..06bc79e97a6b8 100644
--- a/templates/repo/diff/box.tmpl
+++ b/templates/repo/diff/box.tmpl
@@ -153,7 +153,7 @@
 									{{if $isImage}}
 										{{template "repo/diff/image_diff" dict "file" . "root" $ "blobBase" $blobBase "blobHead" $blobHead}}
 									{{else}}
-										{{template "repo/diff/csv_diff" dict "file" . "root" $}}
+										{{template "repo/diff/csv_diff" dict "file" . "root" $ "blobBase" $blobBase "blobHead" $blobHead}}
 									{{end}}
 								</table>
 							</div>
diff --git a/templates/repo/diff/csv_diff.tmpl b/templates/repo/diff/csv_diff.tmpl
index a92ef79301c6e..0f46da306e73f 100644
--- a/templates/repo/diff/csv_diff.tmpl
+++ b/templates/repo/diff/csv_diff.tmpl
@@ -1,6 +1,6 @@
 <tr>
 	<td>
-		{{$result := call .root.CreateCsvDiff .file .root.BaseCommit .root.HeadCommit}}
+		{{$result := call .root.CreateCsvDiff .file .blobBase .blobHead}}
 		{{if $result.Error}}
 			<div class="ui center">{{$result.Error}}</div>
 		{{else if $result.Sections}}
diff --git a/templates/repo/settings/options.tmpl b/templates/repo/settings/options.tmpl
index a9ceebd446094..0214df4514920 100644
--- a/templates/repo/settings/options.tmpl
+++ b/templates/repo/settings/options.tmpl
@@ -42,11 +42,11 @@
 				{{end}}
 				<div class="field {{if .Err_Description}}error{{end}}">
 					<label for="description">{{$.locale.Tr "repo.repo_desc"}}</label>
-					<textarea id="description" name="description" rows="2">{{.Repository.Description}}</textarea>
+					<textarea id="description" name="description" rows="2" maxlength="2048">{{.Repository.Description}}</textarea>
 				</div>
 				<div class="field {{if .Err_Website}}error{{end}}">
 					<label for="website">{{.locale.Tr "repo.settings.site"}}</label>
-					<input id="website" name="website" type="url" value="{{.Repository.Website}}">
+					<input id="website" name="website" type="url" maxlength="1024" value="{{.Repository.Website}}">
 				</div>
 
 				<div class="field">