When a post is edited, the "edited [timestamp]" should link to the diff, so that users can see what was changed.
(Flow previously used a "pencil icon" to indicate an edited-post, and linked that to the diff)
Reported at: https://www.mediawiki.org/w/index.php?title=Talk:Flow&workflow=rxtlvx7tsc2qqf1b#flow-post-rxtmba2on4okznss
Linking to this trello card: https://trello.com/c/tDSC7YBS/360-double-timestamp-on-edited-messages
Version: unspecified
Severity: normal