Proper IDP 3 login handler syntax

[Cantor, Scott]

> For certain apps, they require special service account authentication or a
> special multifactor config. These special service accounts/MFA configs can be
> built into special siteminder polices. The way we've done it in IDP 2, was we
> created a special login hanlder (idp/Authn/SpecialApp1) and then told the
> relying-party to use that login handler.

What I indicated previously is the answer then, there's nothing you can do for this out of the box, you would have to add some code via External (either for both, or just one of the cases).

I found the issue filed for this [1] and it will show up in some form in 3.3.

-- Scott

[1] https://issues.shibboleth.net/jira/browse/IDP-981