Crashes on Wayland

[Juan Simón]

Arch Linux 64 bits
GNOME Shell 3.22.2 on Wayland
synapse 0.2.99.2-2

$ synapse
[INFO 23:13:28.378544] [synapse-main:266] Starting up...
[INFO 23:13:28.466674] [synapse-main:208] Binding activation to <Control>space
[1] 9501 segmentation fault (core dumped) synapse

$ gdb synapse
....
Starting program: /usr/bin/synapse
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[INFO 23:11:34.908287] [synapse-main:266] Starting up...
[New Thread 0x7fffe98cb700 (LWP 9294)]
[New Thread 0x7fffe90ca700 (LWP 9295)]
[New Thread 0x7fffe88c9700 (LWP 9296)]
[New Thread 0x7fffdbee2700 (LWP 9297)]
[New Thread 0x7fffdb271700 (LWP 9298)]
[New Thread 0x7fffdaa70700 (LWP 9299)]
[New Thread 0x7fffda26f700 (LWP 9300)]
[New Thread 0x7fffd9a6e700 (LWP 9301)]
[New Thread 0x7fffd926d700 (LWP 9302)]
[New Thread 0x7fffd8a6c700 (LWP 9303)]
[New Thread 0x7fffd3fff700 (LWP 9304)]
[New Thread 0x7fffd37fe700 (LWP 9305)]
[INFO 23:11:35.071009] [synapse-main:208] Binding activation to <Control>space

Thread 1 "synapse" received signal SIGSEGV, Segmentation fault.
0x00007ffff3dfa086 in ?? () from /usr/lib/libX11.so.6
....

[M. A. (mysegfault)]

I wanted to know more about this segfault, i downloaded the source code and here is where it fails :

(gdb) where
#0 0x00007ffff3e36bc6 in () at /usr/lib/x86_64-linux-gnu/libX11.so.6
#1 0x00007ffff3e37a04 in XkbGetUpdatedMap () at /usr/lib/x86_64-linux-gnu/libX11.so.6
#2 0x00007ffff3e37acd in XkbGetMap () at /usr/lib/x86_64-linux-gnu/libX11.so.6
#3 0x00007ffff74e26e7 in () at /usr/lib/x86_64-linux-gnu/libkeybinder-3.0.so.0
#4 0x00007ffff74e2826 in () at /usr/lib/x86_64-linux-gnu/libkeybinder-3.0.so.0
#5 0x00007ffff74e2c00 in keybinder_bind_full () at /usr/lib/x86_64-linux-gnu/libkeybinder-3.0.so.0
#6 0x000055555556fbab in synapse_ui_launcher_bind_keyboard_shortcut (self=0x5555558e6f40) at synapse-project/src/ui/synapse-main.vala:211
#7 0x000055555556fbab in synapse_ui_launcher_construct (object_type=<optimized out>) at synapse-project/src/ui/synapse-main.vala:63
#8 0x0000555555570454 in synapse_ui_launcher_new () at synapse-project/src/ui/synapse-main.vala:51
#9 0x0000555555570454 in synapse_ui_launcher_main (argv=<optimized out>, argv_length1=<optimized out>) at synapse-project/src/ui/synapse-main.vala:294
#10 0x00007ffff45212b1 in __libc_start_main (main=
    0x55555556f3f0 <main>, argc=1, argv=0x7fffffffe1c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe1b8)
    at ../csu/libc-start.c:291
#11 0x000055555556f42a in _start ()