Wikimedia Bugzilla is closed!

Create Test1, Test2 so that [[Test1]] lins to [[Test2]].
Special:Whatlinkshere reports this fine.

Now remove the link to Test2 from Test1.
Special:Whatlinkshere still says that Test1 is pointing to Test2.
pagelinks table:
+---------+--------------+----------+
| pl_from | pl_namespace | pl_title |
+---------+--------------+----------+
|    1270 |            0 | Test2    |
|    1270 |            0 | Test22   |
+---------+--------------+----------+
(Test22 is the new link that should replace the link to Test2)