Merge "Remove on drag listener after drag ended" into tm-qpr-dev am: bb1e2a526a am: c9cb25ab3b

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/20538917

Change-Id: I895c98ddcc0fc3c3c84708b9115f0537117a8f72
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java

@@ -427,6 +427,8 @@ public class TaskbarDragController extends DragController<BaseTaskbarContext> im
                         // This will take care of calling maybeOnDragEnd() after the animation
                         animateGlobalDragViewToOriginalPosition(btv, dragEvent);
                     }
+                    mActivity.getDragLayer().setOnDragListener(null);
+
                     return true;
             }
             return false;