message: Fix crash in
  My modification of the commit to use m_list->CallAfter() for invocation
  didn't check if m_list is non-NULL.
diff: @@ -247,6 +247,7 @@ bool g_focusToText = false;
  f->Show(true);
  // HACK: make sure this is called *after* the delayed call in PoeditListCtrl::CatalogChanged
  + if (f->m_list)
  f->m_list->CallAfter([=]{ f->PlaceInitialFocus(lineno); });
  return f;
  @@ -939,6 +940,7 @@ void PoeditFrame::DoOpenFile(const wxString& filename, int lineno)
  ReadCatalog(filename);
  // HACK: make sure this is called *after* the delayed call in PoeditListCtrl::CatalogChanged
  + if (m_list)
  m_list->CallAfter([=]{ PlaceInitialFocus(lineno); });
  }
  