[backport v2.11.6] SAML Auth Process Updates #15196
Description
This is a backport issue for #15194, automatically created via GitHub Actions workflow initiated by @richard-cox
Original issue body:
438 - see my comment from June 18
{{ message }}
This is a backport issue for #15194, automatically created via GitHub Actions workflow initiated by @richard-cox
Original issue body:
438 - see my comment from June 18