fix #81323

src/vs/workbench/contrib/outline/browser/outlinePanel.ts

@@ -249,8 +249,6 @@ export class OutlinePanel extends ViewletPanel {
 	private _treeComparator!: OutlineItemComparator;
 	private _treeStates = new LRUCache<string, IDataTreeViewState>(10);
 
-	private _treeFakeUIEvent = new UIEvent('me');
-
 	private readonly _contextKeyFocused: IContextKey<boolean>;
 	private readonly _contextKeyFiltered: IContextKey<boolean>;
 
@@ -531,10 +529,8 @@ export class OutlinePanel extends ViewletPanel {
 
 		// feature: reveal outline selection in editor
 		// on change -> reveal/select defining range
-		this._editorDisposables.add(this._tree.onDidChangeSelection(e => {
-			if (e.browserEvent === this._treeFakeUIEvent /* || e.payload && e.payload.didClickOnTwistie */) {
-				return;
-			}
+		this._editorDisposables.add(this._tree.onDidOpen(e => {
+
 			let [first] = e.elements;
 			if (!(first instanceof OutlineElement)) {
 				return;
@@ -636,7 +632,7 @@ export class OutlinePanel extends ViewletPanel {
 		if (top === null) {
 			this._tree.reveal(item, 0.5);
 		}
-		this._tree.setFocus([item], this._treeFakeUIEvent);
-		this._tree.setSelection([item], this._treeFakeUIEvent);
+		this._tree.setFocus([item]);
+		this._tree.setSelection([item]);
 	}
 }