fix(db) run select transformations before process auto fields

[bungle]

Summary

Run select transformations before process auto fields.

Background: there has been reports that for example EE keyring may not work well with vaults. It might be due to fact that for some reason the read transformations ran after process auto fields. I think the correct place to run transformations is to run them late as possible with writes and early as possible with reads. I will open this on EE too, so I can get an idea if this order change causes any problems there.

[jschmid1]

To add some context:

When a keyring is present & configured, all fields that are marked with encrypted are being stored encrypted in the datastore. When this field needs to be read again, we have to make sure to decrypt it before dereferencing it.

If process_auto_fields - this is where the a potential reference is being _de_referenced, runs before Schema:transform() we're not able to _de_reference a field as we're still seeing encrypted data.

@bungle Since this is somewhat of a regression, I'd advocate for adding a small test to ensure we're not running into this issue again. wdyt?

[bungle]

@bungle Since this is somewhat of a regression, I'd advocate for adding a small test to ensure we're not running into this issue again. wdyt?

@jschmid1, I agree. Thank you for initial review.

[bungle]

@bungle Since this is somewhat of a regression, I'd advocate for adding a small test to ensure we're not running into this issue again. wdyt?

@jschmid1, I agree. Thank you for initial review.

The test is now added.

[jschmid1]

🎉