Sounds like a similar issue, but with small differences. Messages are duplicated with a delay of hours and they are not related with redirects. So, maybe they are related but I don’t think it’s the same.
Just for an FYI: this has been reported again on User talk:DannyS712, multiple users have been affected, including myself.
Log item: https://en.wikipedia.org/w/index.php?title=Special:Log&logid=115025866