The Gnome2DateEdit widget insists on only holding valid date values, and cannot
hold a NULL ( or undef or whatever, I'm a Perl programmer ) value.

This makes the widget unsuitable for applications where a NULL date is a valid
occurance ... in my case in database apps, but clearly this functionality would
be necessary to almost everyone.

Gtk2Calendar partially allows what is required - you can set the day to zero,
which I can then interpret as being a NULL date. Perhaps the same method could
be used with Gnome2DateEdit? It doesn't currently work anyway.

Also required would be a method of clearing out the selection - possibly with a
CTRL-click or something like that.

I have considered carefully the 'severity' I've assigned to this bug. I feel
that since storing a NULL date value is such a common requirement, that this
widget is broken to the point of being unusable. Appologies if others disagree.