Comment 2 for bug 1024202

StacktraceTop:
 __assert_fail_base (fmt=<optimized out>, assertion=0x7fb6f29849d8 "!xcb_xlib_threads_sequence_lost", file=0x7fb6f2984c92 "../../src/xcb_io.c", line=<optimized out>, function=<optimized out>) at assert.c:94
 __GI___assert_fail (assertion=assertion@entry=0x7fb6f29849d8 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7fb6f2984c92 "../../src/xcb_io.c", line=line@entry=273, function=function@entry=0x7fb6f2984db8 "poll_for_event") at assert.c:103
 poll_for_event (dpy=dpy@entry=0x220a800) at ../../src/xcb_io.c:270
 poll_for_response (dpy=dpy@entry=0x220a800) at ../../src/xcb_io.c:288
 _XEventsQueued (dpy=dpy@entry=0x220a800, mode=mode@entry=2) at ../../src/xcb_io.c:362