Looks like this is issues with the following three functions:
- CreateNewMapLevel() (in lvledit_actions.c )
- level_editor_copy_selection() (in lvledit_tool_select.c )
- GetEditableStringInPopupWindow() (in text.c )


GetEditableStringInPopupWindow() looks fixed in r5153 . The other two I'm a
little bit more uncertain about.