Avoid infinite recursion on Mac in comboctrl, and fix an uninitialized pointer in propgrid

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69005 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/combocmn.cpp

@@ -2034,6 +2034,8 @@ void wxComboCtrlBase::OnCharEvent(wxKeyEvent& event)
 
 void wxComboCtrlBase::OnFocusEvent( wxFocusEvent& event )
 {
+// On Mac, this leads to infinite recursion and eventually a crash 
+#ifndef __WXMAC__
     if ( event.GetEventType() == wxEVT_SET_FOCUS )
     {
         wxWindow* tc = GetTextCtrl();
@@ -2044,6 +2046,7 @@ void wxComboCtrlBase::OnFocusEvent( wxFocusEvent& event )
     }
 
     Refresh();
+#endif
 }
 
 void wxComboCtrlBase::OnIdleEvent( wxIdleEvent& WXUNUSED(event) )

src/propgrid/propgrid.cpp

@@ -6227,6 +6227,7 @@ void wxPropertyGridEvent::Init()
     m_column = 1;
     m_canVeto = false;
     m_wasVetoed = false;
+    m_pg = NULL;
 }
 
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