Decref items added to lists

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@27386 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/_treectrl.i

@@ -510,6 +510,7 @@ public:
                 wxTreeItemId *tii = new wxTreeItemId(array.Item(x));
                 PyObject* item = wxPyConstructObject((void*)tii, wxT("wxTreeItemId"), True);
                 PyList_Append(rval, item);
+                Py_DECREF(item);
             }
             wxPyEndBlockThreads(blocked);
             return rval;