By yanniboi: Fixed order placed post transitions missed if paying order in full.

      if ($is_positive) {

        $this->applyTransitionIfAllowed($order->getState(), 'payment_undone');

      }

      // Otherwise, use the paid_in_full transition.

      // Otherwise, transition to the paid_in_full state.

      else {

        $this->applyTransitionIfAllowed($order->getState(), 'paid_in_full');

        // If we are confirming the booking and paying in full in the same

        // transition we need to reset the order state back to the original

        // state (likely 'draft') before applying the transition.

        $order->set('state', $original->getState()->getId());

        $state_item = $order->getState();

        // Transition might be paid_in_full or confirmed_paid_in_full.

        $transition = $state_item->getWorkflow()->findTransition($state_item->getId(), 'paid_in_full');

        if ($transition) {

          $state_item->applyTransition($transition);

        }

      }

    }

  }