[mutter] (6 commits) Non-fast-forward update to branch wip/carlosg/xwayland-dnd-finish

[Marge Bot <marge-bot src gnome org>]

The branch 'wip/carlosg/xwayland-dnd-finish' 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:

  59492d7... wayland: Make XDnD grab unlink source/offer manually
  e59ee36... wayland: Plug XDnD drag source leak
  3e8341d... wayland: Manually detach source/offer on failure paths
  a7a5ef3... wayland: Avoid automatically decoupling source/offer after 

Commits added to the branch:

  445373d... x11: Check for XCB reply (*)
  3322e4f... surface-actor-wayland: Handle Xwayland vanishing gracefully (*)
  3799606... wayland: Make XDnD grab unlink source/offer manually
  8e01ea1... wayland: Plug XDnD drag source leak
  0f9dc84... wayland: Manually detach source/offer on failure paths
  698fe3f... wayland: Avoid automatically decoupling source/offer after 

(*) This commit already existed in another branch; no separate mail sent