if( this._currentTargetWidget !== mouseEvent.getTarget() ) {

        this._onMouseOver( mouseEvent );

      }

    testTreeRequestItemOutsideRow_Bug_345692 : function() {

      var testUtil = org.eclipse.rwt.test.fixture.TestUtil;

      var dndSupport = org.eclipse.rwt.DNDSupport.getInstance();

      var dndHandler = qx.event.handler.DragAndDropHandler.getInstance()

      var leftButton = qx.event.type.MouseEvent.buttons.left;

      testUtil.prepareTimerUse();

      testUtil.initRequestLog();

      var tree = this.createTreeTarget();

      var item0 = this.createTreeItem( 0, tree, tree );

      var item1 = this.createTreeItem( 1, tree, tree );

      var source = this.createSource();

      testUtil.flush();

      var sourceNode = source._getTargetNode();

      var targetNode = tree._clientArea.getChildren()[ 0 ]._getTargetNode();

      var treeNode = tree.getElement();

      var doc = document.body;

      // drag 

      testUtil.fakeMouseEventDOM( sourceNode, "mousedown", leftButton, 11, 11 );

      testUtil.fakeMouseEventDOM( doc, "mousemove", leftButton, 25, 15 );

      assertNotNull( dndHandler.__dragCache );

      assertTrue( dndHandler.__dragCache.dragHandlerActive );

      // over treeRow

      testUtil.fakeMouseEventDOM( targetNode, "mouseover", leftButton );

      assertTrue( dndSupport._currentTargetWidget instanceof org.eclipse.rwt.widgets.TreeRow );

      testUtil.fakeMouseEventDOM( targetNode, "mousemove", leftButton );

      assertTrue( dndSupport._isDropTargetEventScheduled( "dragEnter" ) );

      dndSupport._cancelDropTargetEvent( "dragEnter" );

      dndSupport._cancelDropTargetEvent( "dragOver" );

      // over clientArea

      // NOTE: IE may fire mousemove before mouseover, See Bug 345692

      testUtil.fakeMouseEventDOM( doc, "mousemove", leftButton );

      assertFalse( dndSupport._currentTargetWidget instanceof org.eclipse.rwt.widgets.TreeRow );

      testUtil.fakeMouseEventDOM( doc, "mouseover", leftButton );

      testUtil.forceTimerOnce();

      assertEquals( 2, testUtil.getRequestsSend() );

      var request = testUtil.getRequestLog()[ 1 ];

      var expected = "dragLeave.item=null";

      console.log( request );

      assertTrue( request.search( expected ) != -1 );

      source.setParent( null );

      source.destroy();

      tree.destroy();

    },