Flag to identify if user selected SSO or not

[Rod Widdowson]

Off topic but...

> I’ll just observe that we used to have discovery that remembered your selection.  Now, we don’t have it anymore.

Not sure what is meant by that, but both the (soon to be defunct) CDS and the (very much alive) EDS have always remembered the selection.  They just don't (by default, absent isPassive) follow the selection without user interaction.

See however https://issues.shibboleth.net/jira/projects/EDS/issues/EDS-73 which will be in EDS 1.2.  There are some _very constrained_ environments when this can be useful.

/Rod