Request change-details as part of sendReview request.

We still need to reload the comments because otherwise the latest
comment won't show up properly in the messages list.

Google-Bug-Id: b/296175151
Release-Notes: skip
Change-Id: I773747febd139496c02ccb781a44ed992a614803
diff --git a/polygerrit-ui/app/test/mocks/gr-rest-api_mock.ts b/polygerrit-ui/app/test/mocks/gr-rest-api_mock.ts
index cd0c2dd..531697d 100644
--- a/polygerrit-ui/app/test/mocks/gr-rest-api_mock.ts
+++ b/polygerrit-ui/app/test/mocks/gr-rest-api_mock.ts
@@ -481,7 +481,7 @@
     return Promise.resolve(new Response());
   },
   saveChangeReview() {
-    return Promise.resolve(new Response());
+    return Promise.resolve({});
   },
   saveChangeStarred(): Promise<Response> {
     return Promise.resolve(new Response());