[Mongo+User Schema custom] Cannot login

Whenever I override the user schema using nuxeo studio, I cannot login properly.

Reproduction steps:

• In studio, create a new schema named user with the prefix user
• Reference the default user schema (the one present in the source code of nuxeo)
• Create a user using the UI and define a password
• Logout and try to login with the newly created user

Notes:

• The password is not stored depending on the corresponding directory property passwordHashAlgorithm
• Everything works fine using h2db and postgresql
• Whenever I remove the prefix in the file extension.xml it works properly
• I did not try to add new properties to the override user schema

Env:

• MongoDB 4.0
• Nuxeo 10.2

Attached, the studio project I have used to reproduce the issue.