Re: Keymaps on images have pretty much stopped working

[Richard Stallman]

How about if you try inserting some debugging code in xterm.c, where
it finds the image, or in intervals.c where it looks up the keymap (it
could be get_keymap), to record various data?  That way, after it
fails, you can look at the data in GDB and learn something about where
control passed and what data was wrong.

It may take a few times doing this, saving different data,
to get to the bottom of things, but you can be assured of getting there
and it won't take terribly long.