Ah, I see how to reproduce it!

1. add an LDAP auth source called "test.foo" (e.g. server: ldap.forumsys.com)
2. edit the LDAP auth source + save

The "test.foo" is part of the URL because it's the identifier for the auth source, but ".foo" causes Rails to interpret that as the request format. That's potentially dangerous, if you added "test.yaml" it might cause a formatting change.. we should probably remove "." from the resource identifiers?

Setting back to 1.7.0 as I guess this might be a friendly_id related regression.

I am glad that you were able to reporduce. Let me know, if you need me for anything else.