Fix pressing backspace in the search box deleting an entity

macrovision.js

@@ -4912,6 +4912,10 @@ document.addEventListener("DOMContentLoaded", () => {
         .querySelector("#search-box")
         .addEventListener("change", (e) => doSearch(e.target.value));
 
+
+    document
+        .querySelector("#search-box")
+        .addEventListener("keydown", e => e.stopPropagation());
     // Webkit doesn't draw resized SVGs correctly. It will always draw them at their intrinsic size, I think
     // This checks for that.
     webkitBugTest.onload = () => {