fixed some small bugs

src/app.nim

@@ -1929,7 +1929,7 @@ proc getItemsFromDirectory(vfs: VFS, workspace: Workspace, directory: string, sh
 
     var detail = directory
     if showVFS:
-      let (vfs, rel) = vfs.getVFS(directory // name, 1)
+      let (vfs, _) = vfs.getVFS(directory // name, 1)
       detail.add "\t"
       detail.add vfs.name
 

src/finder/file_previewer.nim

@@ -94,7 +94,8 @@ proc loadAsync(self: FilePreviewer): Future[void] {.async.} =
 
   logScope lvlInfo, &"loadAsync '{path}'"
 
-  let document = if self.currentStaged or not self.reuseExistingDocuments:
+  let isFile = self.currentIsFile.get(true)
+  let document = if self.currentStaged or not self.reuseExistingDocuments or not isFile:
     Document.none
   elif self.openNewDocuments:
     self.editors.getOrOpenDocument(path)

src/vfs.nim

@@ -333,13 +333,15 @@ proc setFileAttributes*(self: VFS, path: string, attributes: FileAttributes): Fu
 
 proc getDirectoryListing*(self: VFS, path: string): Future[DirectoryListing] {.async: (raises: []).} =
   let (vfs, relativePath) = self.getVFS(path)
-  if vfs == self:
-    result = await self.getDirectoryListingImpl(relativePath)
-  else:
+  if vfs == self:
+    result = await self.getDirectoryListingImpl(relativePath)
+  else:
     result = await vfs.getDirectoryListing(relativePath)
 
   if path.len == 0:
     for m in self.mounts:
+      if m.prefix == path:
+        continue
       result.folders.add m.prefix
 
 proc copyFile*(self: VFS, src: string, dest: string): Future[void] {.async: (raises: [IOError]).} =