[keycloak-user] Update roles at login time between 2 realms

Hello, What I am trying to achieve is the following : I have two realms with one client each. Let's call them realm A and realm B. Users from realm B can access my application of realm A, because I added realm B as a keycloak openid connect identity provider in realm A. First time a user from real B access my realm A client, this creates a user in realm A for this client, and I map some roles for this client. So far so good. My issue now is : let's say my client initially had a role R in realm B, and at first login this role was mapped for this user in realm A, if the realm B admin remove role R from this user, I want this role to be removed as well in realm A. Or added if a new role that should be mapped was added. Is there a way to update roles next time this user try to authenticate in the realm A app ? Or should I use another mechanism to keep my roles consistent between my realms ? Thanks a lot in advance for your help.