Program received signal SIGSEGV, Segmentation fault.
0x0000000000406712 in wordsep (ch=-1936613392) at ../clients/terminal.c:2585
2585            return ch == 0 || !(isalpha(ch) || isdigit(ch) || strchr(extra, ch));
(gdb) bt
#0  0x0000000000406712 in wordsep (ch=-1936613392) at ../clients/terminal.c:2585
#1  0x00000000004068d6 in recompute_selection (terminal=terminal@entry=0x108e500) at ../clients/terminal.c:2635
#2  0x000000000040c15d in click_handler (input=0x627390, time=15161859, y=<optimized out>, x=<optimized out>, terminal=0x108e500, widget=0xf01ed0)
    at ../clients/terminal.c:2744
#3  button_handler (widget=0xf01ed0, input=0x627390, time=15161859, button=<optimized out>, state=<optimized out>, data=0x108e500)
        at ../clients/terminal.c:2761
#4  0x0000000000411611 in pointer_handle_button (data=0x627390, pointer=<optimized out>, serial=<optimized out>, time=15161859, button=272, 
            state_w=1) at ../clients/window.c:2792
#5  0x00007ffff59e01f0 in ffi_call_unix64 () from /usr/lib/libffi.so.6
#6  0x00007ffff59dfc58 in ffi_call () from /usr/lib/libffi.so.6
#7  0x00007ffff758bb5a in wl_closure_invoke (closure=<optimized out>, flags=<optimized out>, target=0x16a3510, opcode=3, data=0x627390)
                at src/connection.c:945
#8  0x00007ffff7588b30 in dispatch_event (display=<optimized out>, queue=<optimized out>) at src/wayland-client.c:1173
#9  0x00007ffff7588bcc in dispatch_queue (display=display@entry=0x6260b0, queue=queue@entry=0x626170) at src/wayland-client.c:1348
#10 0x00007ffff7589a37 in wl_display_dispatch_queue (display=0x6260b0, queue=0x626170) at src/wayland-client.c:1587
#11 0x00007ffff7589b21 in wl_display_dispatch (display=<optimized out>) at src/wayland-client.c:1657
#12 0x000000000040d8bc in handle_display_data (task=0x627190, events=1) at ../clients/window.c:5540
#13 0x000000000041452f in display_run (display=display@entry=0x627110) at ../clients/window.c:5865
#14 0x0000000000405f93 in main (argc=1, argv=0x7fffffffdc78) at ../clients/terminal.c:3105