what Change a State reflects. Hence allow Stateful to do some of the work of set/get_state in Region. git-svn-id: svn://localhost/ardour2/branches/3.0@6671 d708f5d6-7413-0410-9779-e7cbd77b26cf
what Change a State reflects. Hence allow Stateful to do some of the work of set/get_state in Region. git-svn-id: svn://localhost/ardour2/branches/3.0@6671 d708f5d6-7413-0410-9779-e7cbd77b26cf