bug#5973: Acknowledgement (Crash in get_next_display_element)

[Eli Zaretskii]

> From: David Reitter <david.reitter@gmail.com>
> Date: Mon, 19 Apr 2010 12:46:26 -0400
> Cc: 
> 
> In line what is done just below in the same function, I would suggest at 
> least the following change

Thanks, but I don't think we should fix problems until we understand
them.  In general, it->face_id should index a face that is already
realized at this point.