double initialization of metaclasses / fields contain references to old fields

[devkral]

Have a look at the fixmes in: edgy/core/db/models/metaclasses.py of my PR feature/composite_field and run hatch run test:test tests/fields to see the crashes when the workaround is removed

The fields are carried over when dropping models (or maybe the fields should be remembered and only the class partly rewired). Somehow even the field attribute is remembered. This is not good.

[tarsil]

@devkral not sure if I understand. This happens in your PR or is something already happening?

[devkral]

fixed