wayland: Destroying and recreating a wl_subsurface doesn't reset its parent-child relationship and position

Affected version

Fedora Linux 38, Mutter 44.5, Wayland

Bug summary

Destroying and recreating a wl_subsurface doesn't reset its parent-child relationship and position, which is against the protocol.

See:

• https://gitlab.freedesktop.org/wayland/wayland/-/issues/414
• https://gitlab.freedesktop.org/wayland/wayland/-/issues/414#note_2135486

Steps to reproduce

Build and execute https://gitlab.freedesktop.org/vyivel/randfall/-/blob/main/cases/subsurface_interactive_recreate_without_parent_commit.c.

What happened

The red subsurface is displayed before the parent surface's state has been committed at the position set before destroying and recreating the wl_subsurface object.

What did you expect to happen

The red subsurface shouldn't be visible.