Invalid schema definition for ID key

I changed it on purpose because Configuration Inspector was complaining that this field (like many others by the way) needed constraints. So I tried to add those constraints and it appeared fixed on my site. What kind of identifier do you have that does not meet those constraints?

But we can go back for sure if it is a problem.

Hmm, that's odd.

I started a project from scratch and quickly created an external entity type (through the UI) called my_external_entity_type and the validation error is also present for this one.

I attached a screenshot + the external entity type's config export - hopefully you can reproduce it as well.

I'll create a new issue to review config schemas and constraints.

Automatically closed - issue fixed for 2 weeks with no activity.