Shibboleth SP 2.5.1 and CentOS 5.8 x64

[Cantor, Scott]

Actually I did spot a change in that code, but not on the line affected.
It's not suspect code, and it certainly works for me, but I would suggest
you file a bug and include the content of your client's _saml_idp cookie.
If I can reproduce it, I might be able to identify a problem. Meantime, if
that were the case, turning off the history cookie might actually help.

The shibboleth.net servers all use the history cookie, so it's not like
the code doesn't work elsewhere. Something's still fishy, but maybe it's
triggered by the cookie you have to start with.

-- Scott