Clearing task when opening home settings in case it is already in the same task

Test: Manually tested on device
Bug: 69960568
Change-Id: If9de28936a7156c4d9c68c85c168ff4aa7492151

src/com/android/settings/applications/defaultapps/DefaultHomePreferenceController.java

@@ -100,7 +100,7 @@ public class DefaultHomePreferenceController extends DefaultAppPreferenceControl
 
         Intent intent = new Intent(Intent.ACTION_APPLICATION_PREFERENCES)
                 .setPackage(packageName)
-                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
         return mPackageManager.queryIntentActivities(intent, 0).size() == 1 ? intent : null;
     }