Fixing bug where drag would sometimes get cancelled inadvertently

Change-Id: I4e838836c5a943abe9ebe2437cb53f68e6aae3d0

src/com/android/launcher2/Workspace.java

@@ -2347,6 +2347,7 @@ public class Workspace extends SmoothPagedView
             mDragTargetLayout.onDragExit();
         }
         mLastDragOverView = null;
+        mSpringLoadedDragController.cancel();
 
         if (!mIsPageMoving) {
             hideOutlines();