fix: do not remove default role

src/controllers/user-controller.ts

@@ -370,7 +370,16 @@ export class UserController extends Controller {
       if (!resultAddRole) {
         throw new Error("Failed. Cannot set user's role.");
       } else {
-        if (Array.isArray(currentRole)) await removeUserRoles(userId, currentRole);
+        if (Array.isArray(currentRole))
+          await removeUserRoles(
+            userId,
+            currentRole.filter(
+              (a) =>
+                !["uma_authorization", "offline_access", "default-roles"].some((b) =>
+                  a.name.includes(b),
+                ),
+            ),
+          );
       }
 
       userRole = role.name;