a bug fix in helpers for ref-counting callbacks

some generated code updates


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4667 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

utils/wxPython/src/helpers.h

@@ -179,6 +179,7 @@ public:
 private:
     PyObject*   m_self;
     PyObject*   m_lastFound;
+    int         m_incRef;
 };