bug#14841: Frames created invisible have their visibility parameter set to t

[Eli Zaretskii]

> From: Juanma Barranquero <lekktu@gmail.com>
> Date: Fri, 26 Jul 2013 02:11:05 +0200
> Cc: 14841@debbugs.gnu.org
> 
> Adding (sit-for 0 t) just before the frame-deletion loop fixes the
> issue with your patch, and invisible frames do work as expected.

So can we decide that the patch can be committed?

Thanks.