No initial focus item (fixes #46949)

src/vs/workbench/browser/parts/quickinput/quickInput.ts

@@ -137,6 +137,7 @@ export class QuickInputService extends Component implements IQuickInputService {
 			// Defer to avoid the input field reacting to the triggering key.
 			setTimeout(() => {
 				this.inputBox.setFocus();
+				this.checkboxList.clearFocus();
 			}, 0);
 		}));
 		this.toUnbind.push(

src/vs/workbench/browser/parts/quickinput/quickInputCheckboxList.ts

@@ -263,8 +263,7 @@ export class QuickInputCheckboxList {
 		}));
 		this.elementDisposables.push(...this.elements.map(element => element.onChecked(() => this.fireCheckedEvents())));
 		this.list.splice(0, this.list.length, this.elements);
-		this.list.setSelection([]);
-		this.list.focusFirst();
+		this.list.setFocus([]);
 	}
 
 	getCheckedElements() {
@@ -277,6 +276,10 @@ export class QuickInputCheckboxList {
 		this.list.reveal(this.list.getFocus()[0]);
 	}
 
+	clearFocus() {
+		this.list.setFocus([]);
+	}
+
 	domFocus() {
 		this.list.domFocus();
 	}
@@ -329,8 +332,7 @@ export class QuickInputCheckboxList {
 		});
 
 		this.list.splice(0, this.list.length, this.elements.filter(element => !element.hidden));
-		this.list.setSelection([]);
-		this.list.focusFirst();
+		this.list.setFocus([]);
 		this.list.layout();
 
 		this._onAllVisibleCheckedChanged.fire(this.getAllVisibleChecked());