Migrating to different User ID

I’m currently working on migrating from my aging custom LDAP infrastructure to a FreeIPA ldap authentication source. My main issue is that when I created my NC user’s UID, I used a GUID style attribute in my old LDAP schema. This way I could change attributes like name, e-mail, etc and not break the user mapping.

Now that I’m switching LDAP schemas, that is shooting me in the foot. I suspect there is lots of information in the SQL DB that is linked to the user’s GUID UID. It there a script that can migrate that to a different UID?