Prevent "&ui_locales=en" to be added to redirect_uri

Hi all
When UPDATE_PASSWORD action is performed on an account, the redirect_url parameter is correctly handled by Keycloak, with the exception that it adds “&ui_locales=en” suffix to redirect_uri presented in the web page after successful password update.
How can I prevent this?
For example, when update password is triggered with request:


the return link presented by Keycloak is pointing to which isn't even a valid uri (lacking ? query delimiter)