In Start Work switches to issue list before waiting for the result

(#3741, #3751)

Author: chivorotkiv

src/plus/startWork/startWork.ts

@@ -161,7 +161,6 @@ export class StartWorkCommand extends QuickCommand<State> {
 					}
 				}
 
-				await updateContextItems(this.container, context);
 				if (this.container.telemetry.enabled) {
 					this.container.telemetry.sendEvent(
 						opened ? 'startWork/steps/issue' : 'startWork/opened',
@@ -470,14 +469,25 @@ export class StartWorkCommand extends QuickCommand<State> {
 			};
 		}
 
-		const { items, placeholder } = getItemsAndPlaceholder();
+		const updateItems = async (quickpick: QuickPick<any>) => {
+			quickpick.busy = true;
+			try {
+				await updateContextItems(this.container, context);
+				const { items, placeholder } = getItemsAndPlaceholder();
+				quickpick.placeholder = placeholder;
+				quickpick.items = items;
+			} finally {
+				quickpick.busy = false;
+			}
+		};
 
-		const step = createPickStep<(typeof items)[0]>({
+		const step = createPickStep<QuickPickItemOfT<StartWorkItem | StartWorkTypeItem>>({
 			title: context.title,
-			placeholder: placeholder,
+			placeholder: 'Loading...',
 			matchOnDescription: true,
 			matchOnDetail: true,
-			items: items,
+			items: [],
+			onDidActivate: updateItems,
 			onDidClickItemButton: (_quickpick, button, { item }) => {
 				if (button === OpenOnGitHubQuickInputButton && !isStartWorkTypeItem(item)) {
 					this.open(item);