SCM - fix edge case with setting the active repository (microsoft#257494)

Author: lszomoru

src/vs/workbench/contrib/scm/browser/scmRepositoriesViewPane.ts

@@ -230,6 +230,7 @@ export class SCMRepositoriesViewPane extends ViewPane {
 
 		this._register(this.tree.onDidChangeSelection(this.onTreeSelectionChange, this));
 		this._register(this.tree.onDidChangeFocus(this.onTreeDidChangeFocus, this));
+		this._register(this.tree.onDidFocus(this.onDidTreeFocus, this));
 		this._register(this.tree.onContextMenu(this.onTreeContextMenu, this));
 		this._register(this.tree.onDidChangeContentHeight(this.onTreeContentHeightChange, this));
 	}
@@ -274,6 +275,13 @@ export class SCMRepositoriesViewPane extends ViewPane {
 		}
 	}
 
+	private onDidTreeFocus(): void {
+		const focused = this.tree.getFocus();
+		if (focused.length > 0) {
+			this.scmViewService.focus(focused[0]);
+		}
+	}
+
 	private onTreeContentHeightChange(height: number): void {
 		this.updateBodySize(height);