diff --git a/extensions/git/src/historyProvider.ts b/extensions/git/src/historyProvider.ts
index db987344028..64230ecf46b 100644
--- a/extensions/git/src/historyProvider.ts
+++ b/extensions/git/src/historyProvider.ts
@@ -83,7 +83,7 @@ export class GitHistoryProvider implements SourceControlHistoryProvider, FileDec
 			this._HEAD?.upstream?.name !== this.repository.HEAD?.upstream?.name ||
 			this._HEAD?.upstream?.remote !== this.repository.HEAD?.upstream?.remote ||
 			this._HEAD?.upstream?.commit !== this.repository.HEAD?.upstream?.commit) {
-			this.logger.trace('GitHistoryProvider:onDidRunGitStatus - Upstream has changed');
+			this.logger.trace(`GitHistoryProvider:onDidRunGitStatus - Upstream has changed (${force})`);
 			this._onDidChangeCurrentHistoryItemGroupBase.fire();
 		}
 
@@ -176,6 +176,7 @@ export class GitHistoryProvider implements SourceControlHistoryProvider, FileDec
 		if (!historyItemId2) {
 			const upstreamRef = await this.resolveHistoryItemGroupBase(historyItemId1);
 			if (!upstreamRef) {
+				this.logger.info(`GitHistoryProvider:resolveHistoryItemGroupCommonAncestor - Failed to resolve history item group base for '${historyItemId1}'`);
 				return undefined;
 			}
 
@@ -184,14 +185,16 @@ export class GitHistoryProvider implements SourceControlHistoryProvider, FileDec
 
 		const ancestor = await this.repository.getMergeBase(historyItemId1, historyItemId2);
 		if (!ancestor) {
+			this.logger.info(`GitHistoryProvider:resolveHistoryItemGroupCommonAncestor - Failed to resolve common ancestor for '${historyItemId1}' and '${historyItemId2}'`);
 			return undefined;
 		}
 
 		try {
 			const commitCount = await this.repository.getCommitCount(`${historyItemId1}...${historyItemId2}`);
+			this.logger.trace(`GitHistoryProvider:resolveHistoryItemGroupCommonAncestor - Resolved common ancestor for '${historyItemId1}' and '${historyItemId2}': ${JSON.stringify({ id: ancestor, ahead: commitCount.ahead, behind: commitCount.behind })}`);
 			return { id: ancestor, ahead: commitCount.ahead, behind: commitCount.behind };
 		} catch (err) {
-			this.logger.error(`Failed to get ahead/behind for '${historyItemId1}...${historyItemId2}': ${err.message}`);
+			this.logger.error(`GitHistoryProvider:resolveHistoryItemGroupCommonAncestor - Failed to get ahead/behind for '${historyItemId1}...${historyItemId2}': ${err.message}`);
 		}
 
 		return undefined;
@@ -212,6 +215,7 @@ export class GitHistoryProvider implements SourceControlHistoryProvider, FileDec
 			// Base (config -> reflog -> default)
 			const remoteBranch = await this.repository.getBranchBase(historyItemId);
 			if (!remoteBranch?.remote || !remoteBranch?.name || !remoteBranch?.commit || remoteBranch?.type !== RefType.RemoteHead) {
+				this.logger.info(`GitHistoryProvider:resolveHistoryItemGroupBase - Failed to resolve history item group base for '${historyItemId}'`);
 				return undefined;
 			}
 
@@ -222,7 +226,7 @@ export class GitHistoryProvider implements SourceControlHistoryProvider, FileDec
 			};
 		}
 		catch (err) {
-			this.logger.error(`Failed to get branch base for '${historyItemId}': ${err.message}`);
+			this.logger.error(`GitHistoryProvider:resolveHistoryItemGroupBase - Failed to get branch base for '${historyItemId}': ${err.message}`);
 		}
 
 		return undefined;
diff --git a/src/vs/workbench/contrib/scm/browser/scmViewPane.ts b/src/vs/workbench/contrib/scm/browser/scmViewPane.ts
index 3a92ee61bdc..73ce611ad21 100644
--- a/src/vs/workbench/contrib/scm/browser/scmViewPane.ts
+++ b/src/vs/workbench/contrib/scm/browser/scmViewPane.ts
@@ -3559,7 +3559,7 @@ class SCMTreeDataSource implements IAsyncDataSource<ISCMViewService, TreeElement
 		let incomingHistoryItemGroup = historyProviderCacheEntry?.incomingHistoryItemGroup;
 		let outgoingHistoryItemGroup = historyProviderCacheEntry?.outgoingHistoryItemGroup;
 
-		if (!incomingHistoryItemGroup || !outgoingHistoryItemGroup) {
+		if (!incomingHistoryItemGroup && !outgoingHistoryItemGroup) {
 			// Common ancestor, ahead, behind
 			const ancestor = await historyProvider.resolveHistoryItemGroupCommonAncestor(currentHistoryItemGroup.id, currentHistoryItemGroup.base?.id);
 			if (!ancestor) {