I just did a fresh install and created a new local user/login called "mjordan". My AD domain uses the same format as "mjordan".
I setup the ADFS and Collaborator settings and in the first shot I did I was able to login but it did not assume the local user and instead of that looks like a new user was created called "email@example.com".
I've tried different and many Claim Rules but not working to authenticate being the local user "mjordan".
Is there any other documentation in how to setup this for ADFS?