Last modified: 2013-05-26 14:36:01 UTC
[http://th.wikipedia.org/w/index.php?title=Special:Log&page=%E0%B8%94%E0%B8%B2%E0%B8%A7%E0%B8%B4%E0%B8%81%E0%B8%B2+%E0%B9%82%E0%B8%AE%E0%B8%A3%E0%B9%8C%E0%B9%80%E0%B8%99%E0%B9%88] shows that User:B20180 protected page "ดาวิกา โฮร์เน่" at 21/8/2011. The expiry of protection is 21/2/2012. There is no further protection so now (26/5/2013) the page should have been unlocked automatically. However, it is still locking for now. I noticed that before 21/2/2012 there is a user moved that page, so I guess that moving page changes expiry of protection to indefinite.
As the moving happened in February 2012 (15 months ago) I'd love to see a *recent* example where this problem occurs - the software has changed a lot in these 15 months.
Sadly :( I can't reproduce it.