interactive/bin-layout: Call save/restore easing state
interactive/bin-layout: Call save/restore easing state

Don't do unprotected calls to set_easing_mode() and
set_easing_duration().

djdeath/clutter-multithreaded,djdeath/clutter-multithreaded,djdeath/clutter-multithreaded,djdeath/clutter-multithreaded