Cannot add new user attribute to LDAP user

Description

Trying to add a new user attribute to an LDAP user gives the following error message - "Error occurred while updating external device claims of the user"

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Affected Product Version:

Entgra UEM 5.0.0

OS, DB, other environment details and versions:

Ubuntu 20.04.3

Steps to reproduce:

1. Create a new LDAP user
2. Go to endpoint-mgt users and click on user attributes of the newly created LDAP user
3. Add new field and enter a number for Device MAC then submit
4. After submitting it gives an error notification with "Error occurred while trying to update claims".

Related Issues:

https://gitlab.com/entgra/product-iots/-/issues/697, #1294