id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	difficulty
972	check let[rec] bindings for multiple occurrences of the same variable	felix winkelmann		"Emit warning if variables are bound multiple times in the same `let` or `letrec` construct.
"	enhancement	closed	minor	someday	expander	4.8.x	fixed