Comment # 4 on bug 980474 from Martin Li��ka

Unfortunately, it still happens with:
GNOME Terminal 3.20.2

coredumpctl shows:

(gdb) bt
#0  0x00007f8b362bb533 in gtk_widget_get_ancestor () at
/usr/lib64/libgtk-3.so.0
#1  0x00000000004224a6 in sync_tab_label (screen=0x1257ac0, pspec=0xed3f30,
label=0x7) at terminal-tab-label.c:72
#2  0x0000000000000000 in  ()
(gdb) info threads 
  Id   Target Id         Frame 
* 1    Thread 0x7f8b36c52a80 (LWP 22068) 0x00007f8b362bb533 in
gtk_widget_get_ancestor () from /usr/lib64/libgtk-3.so.0
  2    Thread 0x7f8b23fff700 (LWP 22070) 0x00007f8b3463407d in poll () from
/lib64/libc.so.6
  3    Thread 0x7f8b28afc700 (LWP 22069) 0x00007f8b3463407d in poll () from
/lib64/libc.so.6
  4    Thread 0x7f8b237fe700 (LWP 22071) 0x00007f8b3463407d in poll () from
/lib64/libc.so.6

I've tried to install all suggested debug packages, but still a line
identification for libgtk-3 is missing.

Martin