For overwrite, do all deletes, then all adds.

Minor UI enhancements.
Fix 2 JPA bugs.
General cleanup.
Documentation.

model/jpa/src/main/java/org/keycloak/models/jpa/JpaUserProvider.java

@@ -76,9 +76,12 @@ public class JpaUserProvider implements UserProvider {
                 userModel.joinGroup(g);
             }
         }
-        for (RequiredActionProviderModel r : realm.getRequiredActionProviders()) {
-            if (r.isEnabled() && r.isDefaultAction()) {
-                userModel.addRequiredAction(r.getAlias());
+
+        if (addDefaultRequiredActions){
+            for (RequiredActionProviderModel r : realm.getRequiredActionProviders()) {
+                if (r.isEnabled() && r.isDefaultAction()) {
+                    userModel.addRequiredAction(r.getAlias());
+                }
             }
         }
 

model/jpa/src/main/java/org/keycloak/models/jpa/RealmAdapter.java

@@ -1059,6 +1059,7 @@ public class RealmAdapter implements RealmModel {
         em.createNamedQuery("deleteGroupRoleMappingsByRole").setParameter("roleId", roleEntity.getId()).executeUpdate();
 
         em.remove(roleEntity);
+        em.flush();
 
         return true;
     }
@@ -1217,7 +1218,7 @@ public class RealmAdapter implements RealmModel {
         realm.setEventsListeners(listeners);
         em.flush();
     }
-    
+
     @Override
     public Set<String> getEnabledEventTypes() {
         return realm.getEnabledEventTypes();
@@ -1228,7 +1229,7 @@ public class RealmAdapter implements RealmModel {
         realm.setEnabledEventTypes(enabledEventTypes);
         em.flush();
     }
-    
+
     @Override
     public boolean isAdminEventsEnabled() {
         return realm.isAdminEventsEnabled();
@@ -1250,7 +1251,7 @@ public class RealmAdapter implements RealmModel {
         realm.setAdminEventsDetailsEnabled(enabled);
         em.flush();
     }
-    
+
     @Override
     public ClientModel getMasterAdminClient() {
         ClientEntity masterAdminClient = realm.getMasterAdminClient();