Last modified: 2014-10-16 11:56:05 UTC
When I edit https://wikitech.wikimedia.org/w/index.php?title=Shell_Request/Hchuying&action=formedit, the page is not put on my watchlist.
Action "formedit" is provided by the Semantic Forms extension. Thus changing component to "Semantic Forms". If the issue is indeed SWM related this may very well be changed back again.
This was a bug in Semantic Forms, that has since been fixed - if Wikimedia Labs upgrades to the latest version of SF, the problem should go away. Thus, I'm reassigning this to "Wikimedia Labs". :)