[Xcb] assertion with new xlib-xcb

[James Cloos]

Since compiling with the patches posted the other day, I noticed that
icewm had restarted each morning.

This was printed to my xsession's STDERR:

icewm: xcb_in.c:522: _xcb_in_replies_done: Assertion `c->in.pending_replies_tail != &c->in.pending_replies' failed.

That is from:

xcb-0004-Support-handing-off-socket-write-permission-to-exter.patch

Unfortunately I do not have any better data than above.

-JimC
-- 
James Cloos <cloos at jhcloos.com>         OpenPGP: 1024D/ED7DAEA6