id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
5096	display_expr is noncopyable	Christopher Schmidt	Eric Niebler	proto::functional::display_expr is not copyable. This can trigger hard errors inside Fusion when being passed to fusion::for_each as a functor because Fusion may expect functors to be copyable.	Bugs	closed	To Be Determined	proto	Boost Development Trunk	Problem	fixed