I filed a bugzilla report on the problem I reported on this mailing list on Fri Feb 3

http://bugzilla.wikimedia.org/show_bug.cgi?id=4918

There is a fix for that available. Here is an rcsdiff -w UserMailer.php for the suggested fix (base64 encoded so the mailinglist does not wrap/corrupt it)

UkNTIGZpbGU6IFJDUy9Vc2VyTWFpbGVyLnBocCx2CnJldHJpZXZpbmcgcmV2aXNpb24gMS4xCmRp ZmYgLXcgLXIxLjEgVXNlck1haWxlci5waHAKMjA3LDIwOGMyMDcsMjEwCjwgCQkJCQlpZiAoICgg JGVub3RpZndhdGNobGlzdHBhZ2UgJiYgJHdhdGNoaW5nVXNlci0+Z2V0T3B0aW9uKCdlbm90aWZ3 YXRjaGxpc3RwYWdlcycpICkgfHwKPCAJCQkJCQkoICRlbm90aWZ1c2VydGFsa3BhZ2UgJiYgJHdh dGNoaW5nVXNlci0+Z2V0T3B0aW9uKCdlbm90aWZ1c2VydGFsa3BhZ2VzJykgKQotLS0KPiAJCQkJ CSMgc2FzZGpiIDA4RmViMDYgcGF0Y2hlZCBhcyBwZXIgaHR0cDovL2J1Z3ppbGxhLndpa2ltZWRp YS5vcmcvc2hvd19idWcuY2dpP2lkPTQ5MTgKPiAJCQkJCSMgU2VlIGFsc28gaHR0cDovL2N2cy5i ZXJsaW9zLmRlL2NnaS1iaW4vdmlld2N2cy5jZ2kvZW5vdGlmd2lraS9lbm90aWZ3aWtpL2luY2x1 ZGVzL1VzZXJNYWlsZXIucGhwP2Fubm90YXRlPTEuMTAKPiAJCQkJCWlmICggKCAoICRlbm90aWZ3 YXRjaGxpc3RwYWdlICYmICR3YXRjaGluZ1VzZXItPmdldE9wdGlvbignZW5vdGlmd2F0Y2hsaXN0 cGFnZXMnKSApIHx8Cj4gCQkJCQkJKCAkZW5vdGlmdXNlcnRhbGtwYWdlICYmICR3YXRjaGluZ1Vz ZXItPmdldE9wdGlvbignZW5vdGlmdXNlcnRhbGtwYWdlcycpICkgKQo=