http://bugs.winehq.org/show_bug.cgi?id=22758
--- Comment #7 from Rosanne DiMesio dimesio@earthlink.net 2010-05-19 08:14:45 --- (In reply to comment #6)
Created an attachment (id=28077)
--> (http://bugs.winehq.org/attachment.cgi?id=28077) [details]
richedit: Send EN_SELCHANGE after wrapping but before EN_CHANGE.
That fixes it.