I created a topic title, and later got a notification:
Ebernhardson edited your post in 2013-11-22 What didn't work? on "Talk:Flow Team Retrospective" View post: <http://ee-flow.wmflabs.org/w/index.php?title=Talk:Flow_Team_Retrospective&workflow=0509f7964aa734dffb6efa163e68c4ac&action=view#flow-post-050a04eac6e734dffb6efa163e68c4ac>
But that was ErikB editing his own reply to someone else's post. If the creator of a topic is supposed to get notified in this case, the the message should be something like:
<username> edited a post [or comment?] on the topic "<topic title>" you created on board "<board name>."
If the notification is unintended then this might be related to bug 56224.
Bug 57447 is a similar misleading Flow notification to a topic's creator.