Comment on the query merger controller

app/javascript/controllers/query_merger_controller.js

@@ -1,5 +1,6 @@
 import { Controller } from "@hotwired/stimulus"
 
+// FIXME: Can we do this without a controller? https://github.com/basecamp/fizzy/pull/130#discussion_r1833094616
 export default class extends Controller {
   merge({ params: { key, value } }) {
     const url = new URL(window.location.href)