Shib 4.0.1, repeated attributes in SAML assertions

[Peter Schober]

* Jeffrey Williams via users <users at shibboleth.net> [2021-02-19 22:58]:
> An issue has cropped up in our dev environment where certain attributes are
> being asserted twice in outgoing SAML assertions.

https://wiki.shibboleth.net/confluence/display/IDP4/ReleaseNotes#ReleaseNotes-Attribute-RelatedChanges
Yellow warning box with the words "duplicate Attributes appearing in SAML messages".
-peter