CallExtendedFlow for Custom Password Help Flow

[Cantor, Scott]

> We are refactoring a custom authn flow into the new MFA framework and
> need to support a subflow that helps users with forgotten
> username/password. Formerly we simply called into this subflow directly,
> but it looks like the CallExtendedFlow state of the Password flow ought to be
> able to do the same thing.

Could be. I don't know if the semantics fit or not, that feature was targeted at branching off to other authentication methods (not sure password reset would qualify).

That was really a primitive attempt to start modeling the stuff I ended up doing from scratch for MFA. I suspect you might be better off having the Password flow signal back an event, and using the MFA logic to branch off from that.

Less nesting and less weirdness that way.

-- Scott