feat: always load fresh api data when starting to edit booking

src/BusProNet/Model/Booking.php

@@ -136,7 +136,8 @@ class Booking
      * Retrieves pickup service for a specific participant.
      *
      * Finds the pickup service assigned to the specified participant
-     * from the outbound pickup services.
+     * from the outbound pickup services. The API only supports pickups
+     * when outbound transportation is bus.
      *
      * @param int $participantIndex The participant index to search for
      *