Force shortcuts to launch as the root of a new task

Otherwise it will try to find a existing task affinity, which can be
stale.

Test: manual
Change-Id: If2982612bf8789e726757e9fda1f70af47274a9e
Fixes: 73710228

src/com/android/settings/shortcut/CreateShortcut.java

@@ -71,7 +71,7 @@ public class CreateShortcut extends LauncherActivity {
     @VisibleForTesting
     Intent createResultIntent(Intent shortcutIntent, ResolveInfo resolveInfo,
             CharSequence label) {
-        shortcutIntent.setFlags(Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
+        shortcutIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
         ShortcutManager sm = getSystemService(ShortcutManager.class);
         ActivityInfo activityInfo = resolveInfo.activityInfo;