docs: public static void cancelConcurrentScope(PvmExecutionImpl execution, PvmActivity cancelledScopeActivity) {
      ensureConcurrentScope(execution);
      LOG.debugCancelConcurrentScopeExecution(execution);
  
      execution.interrupt("Scope "+cancelledScopeActivity+" cancelled.");
      // <!> HACK set to event scope activity and leave activity instance
      execution.setActivity(cancelledScopeActivity);
      execution.leaveActivityInstance();
      execution.interrupt("Scope "+cancelledScopeActivity+" cancelled.");
      execution.destroy();
    }