Comment # 1 on bug 1118041 from Jens-U. Mozdzen

problem persists with Leap 15.1:

jmozdzen@host:~> rpm -qf $(which gq)
gq-1.2.3-lp151.2.3.x86_64
jmozdzen@host:~>

Thread 1 "gq" received signal SIGSEGV, Segmentation fault.
0x00007ffff6a0fb71 in g_type_class_ref () from /usr/lib64/libgobject-2.0.so.0
(gdb) where
#0  0x00007ffff6a0fb71 in g_type_class_ref () from
/usr/lib64/libgobject-2.0.so.0
#1  0x0000555555589999 in ?? ()
#2  0x000055555557917c in ?? ()
#3  0x00007ffff69ee8cd in g_closure_invoke () from
/usr/lib64/libgobject-2.0.so.0
#4  0x00007ffff6a01a7e in ?? () from /usr/lib64/libgobject-2.0.so.0
#5  0x00007ffff6a0a31c in g_signal_emit_valist () from
/usr/lib64/libgobject-2.0.so.0
#6  0x00007ffff75fce1b in gtk_signal_emit () from
/usr/lib64/libgtk-x11-2.0.so.0
#7  0x00007ffff69ee8cd in g_closure_invoke () from
/usr/lib64/libgobject-2.0.so.0
#8  0x00007ffff6a01b4e in ?? () from /usr/lib64/libgobject-2.0.so.0
#9  0x00007ffff6a0a31c in g_signal_emit_valist () from
/usr/lib64/libgobject-2.0.so.0
#10 0x00007ffff75fce1b in gtk_signal_emit () from
/usr/lib64/libgtk-x11-2.0.so.0
#11 0x00007ffff75d677c in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#12 0x00007ffff75e31cd in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#13 0x00007ffff749148b in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#14 0x00007ffff69ee8cd in g_closure_invoke () from
/usr/lib64/libgobject-2.0.so.0
#15 0x00007ffff6a014d0 in ?? () from /usr/lib64/libgobject-2.0.so.0
#16 0x00007ffff6a09c9f in g_signal_emit_valist () from
/usr/lib64/libgobject-2.0.so.0
#17 0x00007ffff6a0ac8f in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#18 0x00007ffff75a060c in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#19 0x00007ffff748fc4c in gtk_propagate_event () from
/usr/lib64/libgtk-x11-2.0.so.0
#20 0x00007ffff749003b in gtk_main_do_event () from
/usr/lib64/libgtk-x11-2.0.so.0
#21 0x00007ffff710208c in ?? () from /usr/lib64/libgdk-x11-2.0.so.0
#22 0x00007ffff6714e87 in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#23 0x00007ffff6715230 in ?? () from /usr/lib64/libglib-2.0.so.0
#24 0x00007ffff6715542 in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#25 0x00007ffff748f097 in gtk_main () from /usr/lib64/libgtk-x11-2.0.so.0
#26 0x0000555555563e5d in ?? ()
#27 0x00007ffff5845f8a in __libc_start_main () from /lib64/libc.so.6
#28 0x0000555555563f0a in ?? ()
(gdb)