deposit: ensure that migrated data that are not shown in the deposit form are not overridden on edit/publish

[zzacharo]

• We need to ensure that the migrated data are not overridden after a user edits/publish a migrated record.
• We need to allow only a specific group of people e.g admins to be able to edit all the information put in the _curation field for future reference.

[Br3nnabee]

Would it make sense in this case to make the initial migrated records immutable? Then, if edits are required, perhaps allow only making changes via a delta or overlay system that doesn't overwrite the original?

[zzacharo]

Would it make sense in this case to make the initial migrated records immutable? Then, if edits are required, perhaps allow only making changes via a delta or overlay system that doesn't overwrite the original?

Hey @Br3nnabee ! Yes that's the point, basically the backend to always preserve specific fields that come out of migration. We are using a similar preserver decorator to do that for system added fields.