idp.authn.Password.matchExpression

[Cantor, Scott]

>    The wiki is a bit vague on this property in authn.properties and the matchExpression properties for other
> authn flows. Is this just an expression that the IdP will match against, or can I use it to do removal/addition of
> components?

No, it's just a regex matcher. The transforms settings do replacements. The point of this setting is to optimize chains of validators by skipping them based on username format (that's from memory, I think that's what it was for).

-- Scott