While the check for
clutter_actor_has_mapped_clones clearly indicates
an intention to take clones into account, the following code
does not do so, likely because it predates the introduction of
Switch to that newer API in order to take clones into account. This
events when entering the overview, reducing client work.
wl_surface_send_enter() may trigger a
buffer_transform change. Depending on the client implementation this may result in a buffer resize, potentially a quite heavy operation.