Cannot create users using admin-cli while plugin is enabled on realm

[OrdAlex]

Having the plugin enabled on a realm prevents creating users using admin-cli on that realm.

Steps to reproduce

• Install plugin following instructions (4.0.0 version) (keycloak version 24.0.5)
• configure plugin
• Use Postman to request admin account token using admin-cli client
• Use Postman to create a user on the realm plugin was configured on

What you expected would happen

• User is created.

What actually happens

• Request never finishes
• No logs are shown in Keycloak
• Users cannot be created on the same realm until Keycloak is restarted even when using web interface

Screenshot of plugin settings

User Federation plugin works properly
Using the same request to create user on a different realm without the plugin configured or on the same realm with the plugin disabled does create the user properly