[mutter] (3 commits) Non-fast-forward update to branch wip/carlosg/on-demand-fixes

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/on-demand-fixes' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  77cd19d... wayland: Create XAuthority file once
  9b4e5de... wayland: Start up the grace Xwayland period right after sta
  85b2739... core: Do not crash on untimely stack queries for X11 window

Commits added to the branch:

  e9e28ba... wayland: Create XAuthority file once
  3259c7e... wayland: Start up the grace Xwayland period right after sta
  a0bdf44... core: Do not crash on untimely stack queries for X11 window