message: Re-freeze to un-freeze
diff: import { DimItem } from 'app/inventory/item-types';
  import { Observable } from 'app/utils/observable';
  -import { setAutoFreeze } from 'immer';
  -
  -// Immer's auto-freeze can get us in trouble because we do sometimes modify the produced item.
  -setAutoFreeze(false);
  /**
  * What part of the loadout application process are we currently in?
  