Add toolbox spaces and recover from stale asset bundles

e2e/fixtures/toolbox-tutorial-probe.js

@@ -9,10 +9,22 @@ export function mountToolboxTutorialProbe(element, siteContent) {
   const writes = [];
   const pendingChanges = [];
   let setInputs;
+  function createToolbox(id) {
+    const defaultSpaceId = `space-${id}`;
+    return {
+      id,
+      name: id,
+      modules: [],
+      spaces: [{ id: defaultSpaceId, name: "Défaut", moduleOrder: { one: [], two: [[], []] } }],
+      defaultSpaceId,
+      activeSpaceId: defaultSpaceId,
+      tutorial: id !== "c"
+    };
+  }
   function Probe() {
     const [inputs, updateInputs] = useState({
       toolboxId: "a", pendingTutorialToolboxId: "",
-      toolboxes: ["a", "b", "c"].map((id) => ({ id, name: id, modules: [], tutorial: id !== "c" }))
+      toolboxes: ["a", "b", "c"].map(createToolbox)
     });
     setInputs = updateInputs;
     return createElement(ToolboxPage, {