tandem raise/lower for half-screen snapped windows breaks normal workflows

[cleary]

This has been reported upstream, and fixed/reverted:

> Mantas Mikulėnas (grawity) 2017-10-07 17:58:32 UTC
> A recent commit added this feature:
>
> window: Raise and lower tile match in tandem
>
> When a pair of tiled windows are grouped together, they
> are treated as parts of a whole and interacting with one
> affects the other.
>
> Following the idea that sibling tiled windows are treated
> as part of the same group, they should also be raised and
> lowered together.

> I'd like to ask for this to be optional, as in practice it ends up more
> annoying than useful. (For example, the way it selects a match is prone
> to accidentally grouping unrelated windows just because they're next to
> each other in the z-order...)

https://bugzilla.gnome.org/show_bug.cgi?id=788644

The revert commit:
https://gitlab.gnome.org/GNOME/mutter/commit/415584344a5d4b5

This is not currently in 18.04, I think it's important to include - can I make a wishlist request? :D

[Jeremy Bícha (jbicha)]

I'm marking this Fix Released because I already finalized the debian/changelog entry for mutter 3.28.0-1. The update will be synced from Debian tomorrow.

[cleary (bernard-gray)]

Fantastic, thankyou!