Last modified: 2007-06-28 20:32:18 UTC
When a user removes one or more items from their watchlist, the resulting success page has "Preview" in the HTML title. This is a side-effect of using "submit" as the action, and the subsequent assumption in OutputPage::setPageTitle().
Simple solution would be to use a different action.
*** This bug has been marked as a duplicate of bug 2735 ***