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Area

admin/api

Describe the bug

When updating user attributes, you need to send firstName, lastName, email (OPTIONAL fields).
In the version < 24 we used the admin API to update attributes, when doing the same with version 24.0.2 the API clears the firstname, lastname, email field.

Version

24.0.2

Regression

[X] The issue is a regression

Expected behavior

When updating a user and you dont send OPTIONAL fields, the API should keep the field content of those fields.

Actual behavior

The API clears the fields.

How to Reproduce?

Send a PUT request to any user api endpoint:
PUT /admin/realms/

/users/

`

"attributes":

}`
Check the Keycloak user again, firstname, lastname, email are gone

Anything else?

No response