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
....