Comment 2 for bug 1872036

StacktraceTop:
 __assert_fail_base (fmt=0x7f53e337c45a <error: Cannot access memory at address 0x7f53e337c45a>, assertion=0x7f53e6940858 "!xcb_xlib_threads_sequence_lost", file=0x7f53e69406c3 "../../src/xcb_io.c", line=260, function=<optimized out>) at assert.c:92
 __GI___assert_fail (assertion=assertion@entry=0x7f53e6940858 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7f53e69406c3 "../../src/xcb_io.c", line=line@entry=260, function=function@entry=0x7f53e6940b10 <__PRETTY_FUNCTION__.14999> "poll_for_event") at assert.c:101
 poll_for_event (dpy=dpy@entry=0x555881287b50, queued_only=queued_only@entry=0) at ../../src/xcb_io.c:260
 poll_for_response (dpy=dpy@entry=0x555881287b50) at ../../src/xcb_io.c:278
 _XEventsQueued (mode=2, dpy=0x555881287b50) at ../../src/xcb_io.c:362