fixed bug in mouse handling

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8336 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/treectlg.cpp

@@ -2414,7 +2414,9 @@ void wxGenericTreeCtrl::OnMouse( wxMouseEvent &event )
             nevent.SetEventObject(this);
             GetEventHandler()->ProcessEvent(nevent);
         }
-        else if ( event.LeftUp() && m_lastOnSame )
+        else if ( event.LeftUp() )
+        {
+            if ( m_lastOnSame )
             {
                 if ( (item == m_current) &&
                      (flags & wxTREE_HITTEST_ONITEMLABEL) &&
@@ -2425,6 +2427,7 @@ void wxGenericTreeCtrl::OnMouse( wxMouseEvent &event )
 
                 m_lastOnSame = FALSE;
             }
+        }
         else
         {
             if ( event.LeftDown() )