id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
1816	Add Data.Set.mapMaybe	guest	fox@ucw.cz	"This function is also available for lists (from Data.Maybe) and Maps (Data.Set).
The semantics are straightforward:
{{{
mapMaybe f = fromList . catMaybes . map f . toList
}}}"	proposal	closed	normal	7.6.1	libraries/base		wontfix		nominolo@… bgamari@… johan.tibell@…	Unknown/Multiple	Unknown/Multiple	None/Unknown	Unknown