message: If the item is in the postmaster, move it to the correct bucket.
diff: @@ -57,6 +57,10 @@ export function ItemService(
  target = storeService.getStore(target.id);
  item = storeService.getItemAcrossStores(item);
  + if (item.location.inPostmaster) {
  + item.location = item.bucket;
  + }
  +
  // If we've moved to a new place
  if (source.id !== target.id) {
  // We handle moving stackable and nonstackable items almost exactly the same!
  