message: Store, not this
diff: @@ -422,7 +422,7 @@ function removeItem(store: Draft<DimStore>, item: Draft<DimItem>) {
  ) {
  store.vault.vaultCounts[item.location.hash].count--;
  } else if (isVault(store) && item.location.vaultBucket) {
  - this.vaultCounts[item.location.vaultBucket.hash].count--;
  + store.vaultCounts[item.location.vaultBucket.hash].count--;
  }
  return true;
  