GUACAMOLE-1656: Force refresh the user context on updateUserContext to ensure that any modified user attributes are picked up.

extensions/guacamole-vault/modules/guacamole-vault-ksm/src/main/java/org/apache/guacamole/vault/ksm/GuacamoleExceptionSupplier.java

@@ -39,4 +39,5 @@ public abstract class GuacamoleExceptionSupplier<T> {
      *    If an error occurs while attemping to calculate the return value.
      */
     public abstract T get() throws GuacamoleException;
+
 }