Previously, if you navigated to /outfits/new without a species or color in the query string, we'd show a blank outfit page, with the species/color picker hidden. Now, we default to a Blue Acara instead!
We don't do anything to handle _invalid_ species/color IDs, but I don't super mind that, because in practice that would require some call site to malform the URL, and I don't super expect that.
This resolves more of the _cause_ of Sentry issue IMPRESS-2020-8, but I'm still wondering how a user got to the URL `/outfits/new?[object+Object]=&objects[]=35185&objects[]=67084`. I'm wondering if the pet loader on the homepage has a bug in Safari? I feel like I heard something like that from the feedback form, too...