Contact.subject_uuid
split from !2050 (closed)
The big issue here is that migrations need to be executed in the correct order across databases, i.e.
- First rename Subject.slug to Subject.uuid (!2063 (merged))
- Then change Contact.subject_id (this)
- Only then Subject.id can be removed
I tried to make the firsttwo independent in 2f17f264, but I am not sure whether that is a good idea.