Merge "Skip home activity in removeUnreachableHiddenTasks" into udc-dev

services/core/java/com/android/server/wm/RecentTasks.java

@@ -1512,7 +1512,7 @@ class RecentTasks {
         // callbacks here.
         final Task removedTask = mTasks.remove(removeIndex);
         if (removedTask != task) {
-            if (removedTask.hasChild()) {
+            if (removedTask.hasChild() && !removedTask.isActivityTypeHome()) {
                 Slog.i(TAG, "Add " + removedTask + " to hidden list because adding " + task);
                 // A non-empty task is replaced by a new task. Because the removed task is no longer
                 // managed by the recent tasks list, add it to the hidden list to prevent the task