diff --git a/services/core/java/com/android/server/wm/ActivityStarter.java b/services/core/java/com/android/server/wm/ActivityStarter.java
index fc412cbdad727..960b1bcd5c423 100644
--- a/services/core/java/com/android/server/wm/ActivityStarter.java
+++ b/services/core/java/com/android/server/wm/ActivityStarter.java
@@ -2576,6 +2576,7 @@ class ActivityStarter {
             mInTask = null;
         }
         mInTaskFragment = inTaskFragment;
+        sendNewTaskFragmentResultRequestIfNeeded();
 
         mStartFlags = startFlags;
         // If the onlyIfNeeded flag is set, then we can do this if the activity being launched
@@ -2618,6 +2619,18 @@ class ActivityStarter {
         }
     }
 
+    private void sendNewTaskFragmentResultRequestIfNeeded() {
+        if (mStartActivity.resultTo != null && mInTaskFragment != null
+                && mInTaskFragment != mStartActivity.resultTo.getTaskFragment()) {
+            Slog.w(TAG,
+                    "Activity is launching as a new TaskFragment, so cancelling activity result.");
+            mStartActivity.resultTo.sendResult(INVALID_UID, mStartActivity.resultWho,
+                    mStartActivity.requestCode, RESULT_CANCELED,
+                    null /* data */, null /* dataGrants */);
+            mStartActivity.resultTo = null;
+        }
+    }
+
     private void computeLaunchingTaskFlags() {
         // If the caller is not coming from another activity, but has given us an explicit task into
         // which they would like us to launch the new activity, then let's see about doing that.