Errro Undefined index: sa

[Juan Carlos]

I upadate yesterday to last gh and now, every time I clic in admin->members appear this error.

../../ManageMembers.php (Line 136)

135:      // Set the current sub action.
136:      $context['sub_action'] = $_REQUEST['sa'];

I attach the backtrace

Saludos

[albertlast]

i open an issue for this: https://github.com/SimpleMachines/SMF2.1/issues/5051