diff --git a/services/core/java/com/android/server/wm/RecentTasks.java b/services/core/java/com/android/server/wm/RecentTasks.java
index e47787e..9ef5ed0 100644
--- a/services/core/java/com/android/server/wm/RecentTasks.java
+++ b/services/core/java/com/android/server/wm/RecentTasks.java
@@ -1104,6 +1104,10 @@
                         // front unless overridden by the provided activity options
                         mTasks.remove(taskIndex);
                         mTasks.add(0, task);
+                        if (taskIndex != 0) {
+                            // Only notify when position changes
+                            mTaskNotificationController.notifyTaskListUpdated();
+                        }
 
                         if (DEBUG_RECENTS) {
                             Slog.d(TAG_RECENTS, "addRecent: moving to top " + task
@@ -1552,7 +1556,7 @@
                         task.affinity != null && task.affinity.equals(t.affinity);
                 final boolean sameIntent = intent != null && intent.filterEquals(trIntent);
                 boolean multiTasksAllowed = false;
-                final int flags = intent.getFlags();
+                final int flags = intent != null ? intent.getFlags() : 0;
                 if ((flags & (FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_NEW_DOCUMENT)) != 0
                         && (flags & FLAG_ACTIVITY_MULTIPLE_TASK) != 0) {
                     multiTasksAllowed = true;
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index bb6f805..7b7dd85 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -1271,6 +1271,10 @@
         if (isPersistable) {
             mLastTimeMoved = System.currentTimeMillis();
         }
+        if (toTop && inRecents) {
+            // If task is in recents, ensure it is at the top
+            mTaskSupervisor.mRecentTasks.add(this);
+        }
     }
 
     // Close up recents linked list.
diff --git a/services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java b/services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java
index 2671e77..8b8744b 100644
--- a/services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java
@@ -1702,6 +1702,9 @@
 
     @Test
     public void testRecordActivityMovementBeforeDeliverToTop() {
+        // Mock recents as task is only marked to be in recents
+        mAtm.mTaskSupervisor.setRecentTasks(mock(RecentTasks.class));
+
         final Task task = new TaskBuilder(mAtm.mTaskSupervisor).build();
         final ActivityRecord activityBot = new ActivityBuilder(mAtm).setTask(task).build();
         final ActivityRecord activityTop = new ActivityBuilder(mAtm).setTask(task).build();
diff --git a/services/tests/wmtests/src/com/android/server/wm/RecentTasksTest.java b/services/tests/wmtests/src/com/android/server/wm/RecentTasksTest.java
index 10f4158..a24e6fb 100644
--- a/services/tests/wmtests/src/com/android/server/wm/RecentTasksTest.java
+++ b/services/tests/wmtests/src/com/android/server/wm/RecentTasksTest.java
@@ -49,10 +49,12 @@
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.clearInvocations;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.reset;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyZeroInteractions;
 
 import static java.lang.Integer.MAX_VALUE;
 
@@ -1139,6 +1141,40 @@
     }
 
     @Test
+    public void addTask_taskAlreadyInRecentsMovedToTop_callsTaskNotificationController() {
+        final Task firstTask = createTaskBuilder(".Task").build();
+        final Task secondTask = createTaskBuilder(".Task2").build();
+
+        mRecentTasks.add(firstTask);
+        mRecentTasks.add(secondTask);
+
+        TaskChangeNotificationController controller =
+                mAtm.getTaskChangeNotificationController();
+        clearInvocations(controller);
+
+        // Add firstTask back to top
+        mRecentTasks.add(firstTask);
+        verify(controller).notifyTaskListUpdated();
+    }
+
+    @Test
+    public void addTask_taskAlreadyInRecentsOnTop_doesNotNotify() {
+        final Task firstTask = createTaskBuilder(".Task").build();
+        final Task secondTask = createTaskBuilder(".Task2").build();
+
+        mRecentTasks.add(firstTask);
+        mRecentTasks.add(secondTask);
+
+        TaskChangeNotificationController controller =
+                mAtm.getTaskChangeNotificationController();
+        clearInvocations(controller);
+
+        // Add secondTask to top again
+        mRecentTasks.add(secondTask);
+        verifyZeroInteractions(controller);
+    }
+
+    @Test
     public void removeTask_callsTaskNotificationController() {
         final Task task = createTaskBuilder(".Task").build();