Spawning Weston (+Xwayland) within tmux kills the X connection
This may be related to of #161.
Effectively starting Xwayland enabled weston in tmux kills the X connection and the following can be observed in dmesg:
weston[5588]: segfault at 7f3af2433d50 ip 00007f3af2433d50 sp 00007ffdc8fa9268 error 14 in libXdmcp.so.6.0.0
Note that the X session is still alive, although the connection itself is hosed.
For example:
$ pgrep Xserver | wc -l -> 1 while $ DISPLAY=:0 app fails
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