NXP-23256 and this commit, https://nightly.nuxeo.com/nuxeo/api/v1/config/schemas/dublincore?fetch.schema=fields does not show the userResolver constraint on dc:creator, dc:lastContributors etc.
while coverage for instance is fine
This is wrong, the config endpoint purpose was actually to make available this kind of information.
On the server side, constraints are called during validation. We disabled creator, lastContributor and contributors validation because they are system metadata filled by Nuxeo. This was about to avoid Directory request on a field known to be valid.
We want to know the constraints on a field even if the validation is disabled. We can add a new field on resolver (validation), in order to disable the validation but allow to serialise constraints in config endpoint.