* src/gramps_main.py (undo_callback): Enable underscore in a label.

* src/NameDisplay (display_name): Return empty string for None.
* src/NameEdit.py (__init__): Compare displayed name with empty string,
(update_group_as): Only query grouping for existing name.


svn: r4093

gramps2/src/gramps_main.py

@@ -459,6 +459,7 @@ class Gramps:
         if text == None:
             self.undolabel.set_sensitive(0)
             self.undolabel.get_children()[0].set_text(_("_Undo"))
+            self.undolabel.get_children()[0].set_use_underline(1)
         else:
             self.undolabel.set_sensitive(1)
             label = self.undolabel.get_children()[0]