Add more logging message to monitor branch token update (#5058)

<!-- Describe what has changed in this PR -->
**What changed?**
Add more logging message to monitor branch token update

<!-- Tell your future self why have you made these changes -->
**Why?**
better debugging.

<!-- How have you verified this change? Tested locally? Added a unit
test? Checked in staging env? -->
**How did you test it?**
only logging.

<!-- Assuming the worst case, what can be broken when deploying this
change to production? -->
**Potential risks**


<!-- Is this PR a hotfix candidate or require that a notification be
sent to the broader community? (Yes/No) -->
**Is hotfix candidate?**

---------

Co-authored-by: Stephan Behnke <stephanos@users.noreply.github.com>

service/history/api/get_workflow_util.go

@@ -37,6 +37,7 @@ import (
 	"go.temporal.io/server/api/historyservice/v1"
 	"go.temporal.io/server/common"
 	"go.temporal.io/server/common/definition"
+	"go.temporal.io/server/common/log/tag"
 	"go.temporal.io/server/common/namespace"
 	"go.temporal.io/server/common/persistence/versionhistory"
 	serviceerrors "go.temporal.io/server/common/serviceerror"
@@ -53,6 +54,7 @@ func GetOrPollMutableState(
 	eventNotifier events.Notifier,
 ) (*historyservice.GetMutableStateResponse, error) {
 
+	logger := shardContext.GetLogger()
 	namespaceID := namespace.ID(request.GetNamespaceId())
 	err := ValidateNamespaceUUID(namespaceID)
 	if err != nil {
@@ -94,6 +96,14 @@ func GetOrPollMutableState(
 	// We return the full version histories. Callers need to fetch the last version history item from current branch
 	// and use the last version history item in following calls.
 	if !versionhistory.ContainsVersionHistoryItem(currentVersionHistory, request.VersionHistoryItem) {
+		logItem, err := versionhistory.GetLastVersionHistoryItem(currentVersionHistory)
+		if err != nil {
+			return nil, err
+		}
+		logger.Warn("Request history branch and current history branch don't match",
+			tag.Value(logItem),
+			tag.TokenLastEventVersion(request.VersionHistoryItem.GetVersion()),
+			tag.TokenLastEventID(request.VersionHistoryItem.GetEventId()))
 		return nil, serviceerrors.NewCurrentBranchChanged(response.CurrentBranchToken, request.CurrentBranchToken)
 	}
 
@@ -121,6 +131,14 @@ func GetOrPollMutableState(
 			return nil, err
 		}
 		if !versionhistory.ContainsVersionHistoryItem(currentVersionHistory, request.VersionHistoryItem) {
+			logItem, err := versionhistory.GetLastVersionHistoryItem(currentVersionHistory)
+			if err != nil {
+				return nil, err
+			}
+			logger.Warn("Request history branch and current history branch don't match prior to polling the mutable state",
+				tag.Value(logItem),
+				tag.TokenLastEventVersion(request.VersionHistoryItem.GetVersion()),
+				tag.TokenLastEventID(request.VersionHistoryItem.GetEventId()))
 			return nil, serviceerrors.NewCurrentBranchChanged(response.CurrentBranchToken, request.CurrentBranchToken)
 		}
 		if expectedNextEventID < response.GetNextEventId() || response.GetWorkflowStatus() != enumspb.WORKFLOW_EXECUTION_STATUS_RUNNING {
@@ -152,6 +170,14 @@ func GetOrPollMutableState(
 				response.CurrentBranchToken = latestVersionHistory.GetBranchToken()
 				response.VersionHistories = event.VersionHistories
 				if !versionhistory.ContainsVersionHistoryItem(latestVersionHistory, request.VersionHistoryItem) {
+					logItem, err := versionhistory.GetLastVersionHistoryItem(currentVersionHistory)
+					if err != nil {
+						return nil, err
+					}
+					logger.Warn("Request history branch and current history branch don't match after polling the mutable state",
+						tag.Value(logItem),
+						tag.TokenLastEventVersion(request.VersionHistoryItem.GetVersion()),
+						tag.TokenLastEventID(request.VersionHistoryItem.GetEventId()))
 					return nil, serviceerrors.NewCurrentBranchChanged(response.CurrentBranchToken, request.CurrentBranchToken)
 				}
 				if expectedNextEventID < response.GetNextEventId() || response.GetWorkflowStatus() != enumspb.WORKFLOW_EXECUTION_STATUS_RUNNING {