Last modified: 2008-07-24 16:47:48 UTC
This is a great feature, but there's a bug - it screws up redirects to sections: [http://en.wikipedia.org/w/index.php?title=User%3ANE2%2F4&diff=227529190&oldid=227529076] Specifically, if A redirects to B#S, and you move B to C, A becomes a redirect to C, not C#S.
*** Bug 14905 has been marked as a duplicate of this bug. ***
Updated summary
Fixed in r37999, live now.