tiling_resize: fix use-after-free on view unmap during resize

Closing a tiled window (mod+shift+q) while resizing (mod+click) causes
an use-after-free in handle_unref.

Both conditions can be true in this case, which will result in
dereferencing `e` on the second check after it has already been freed by
the first `seatop_begin_default`.

Fix by combining separate checks for the main container and its
horizontal/vertical siblings into a single condition.

The second check was added in 4957a35dc8d5b0e597d5f87132df2d2985becf48
and I've checked that this fix does not regress that issue.

0 files changed, 0 insertions, 0 deletions