Unfortunately I couldn't create the group. I got error that the group already exists, but I only found the user with username yggdrasil not any group. The user is somewhat strange it doesn't show up in FAS, just in IPA.

@kevin @abompard Any idea what to do here?

The yggdrasil user hasn't been touched since it was imported from the old FAS, it does not have the fasuser objectclass which makes it invisible in FAS. I can easily add it if needed.
There is a group called yggdrasil that was created as the primary group of the yggdrasil user. There again it does not have the fasgroup objectclass.

Adding the object classes is easy, but if the user has always been a bot user, we may want to remove it and create the group instead.

@kevin I would like your view on this as well.

In this case I am ok with just deleting the existing non fas user. Their email address is @fedoraproject.org so I have no idea the history there, but I don't think it could have been actually used for anything.

Because of what @kevin said, would it be possible to move forward by dropping the old bits and creating the new group?

I removed the user yggdrasil, created the yggdrasil group and added requested sponsors.