ComboBoxEntry dropdown is useless when empty
@murrayc
Submitted by Murray Cumming Link to original bug (#301193)
Description
It would be nice if the GtkComboBoxEntry did not show the drop-down menu arrow when there are no items for it to show. This would allow me to use a GtkComboBoxEntry for data that may, or may not, have a list of possible values, without sometimes changing the widget temporarily to a GtkEntry.
Version: 2.6.x