diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeController.java b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeController.java
index c9c0e40f616ce..ad334b5f2dc8c 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeController.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeController.java
@@ -41,7 +41,6 @@ import android.os.RemoteException;
 import android.os.UserHandle;
 import android.provider.Settings;
 import android.util.ArraySet;
-import android.util.Pair;
 import android.view.SurfaceControl;
 import android.view.WindowManager;
 import android.window.DisplayAreaInfo;
@@ -364,10 +363,7 @@ public class DesktopModeController implements RemoteCallable<DesktopModeControll
         }
         ProtoLog.d(WM_SHELL_DESKTOP_MODE, "handle shell transition request: %s", request);
 
-        Pair<Transitions.TransitionHandler, WindowContainerTransaction> subHandler =
-                mTransitions.dispatchRequest(transition, request, this);
-        WindowContainerTransaction wct = subHandler != null
-                ? subHandler.second : new WindowContainerTransaction();
+        WindowContainerTransaction wct = new WindowContainerTransaction();
         bringDesktopAppsToFront(wct);
         wct.reorder(request.getTriggerTask().token, true /* onTop */);
 
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopModeControllerTest.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopModeControllerTest.java
index 43f8f7b074bfc..63de74fa3b054 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopModeControllerTest.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopModeControllerTest.java
@@ -41,6 +41,7 @@ import static org.mockito.Mockito.clearInvocations;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyZeroInteractions;
 import static org.mockito.Mockito.when;
 
 import android.app.ActivityManager.RunningTaskInfo;
@@ -418,6 +419,17 @@ public class DesktopModeControllerTest extends ShellTestCase {
         assertThat(wct).isNotNull();
     }
 
+    @Test
+    public void testHandleTransitionRequest_taskOpen_doesNotStartAnotherTransition() {
+        RunningTaskInfo trigger = new RunningTaskInfo();
+        trigger.token = new MockToken().token();
+        trigger.configuration.windowConfiguration.setWindowingMode(WINDOWING_MODE_FREEFORM);
+        mController.handleRequest(
+                mock(IBinder.class),
+                new TransitionRequestInfo(TRANSIT_OPEN, trigger, null /* remote */));
+        verifyZeroInteractions(mTransitions);
+    }
+
     private DesktopModeController createController() {
         return new DesktopModeController(mContext, mShellInit, mShellController,
                 mShellTaskOrganizer, mRootTaskDisplayAreaOrganizer, mTransitions,