BTOG tests relied on this bug, which was fun

BTOG init never conducted discovery, but _did_ pass an okapi object
during application setup, which is another way of saying that our
application didn't have anything that relied on the presence of this
bug, but our test suite did.

test/bigtest/helpers/setup-application.js

@@ -54,6 +54,9 @@ export default function setupApplication({
         currentPerms: permissions,
         isAuthenticated: true,
       };
+      initialState.discovery = {
+        isFinished: true,
+      };
     } else {
       initialState.okapi = {
         ssoEnabled: true,