Assert the merge walked alone is taken from its key at its own commit, since a cut records no ask (issue 1931)

cmd/mesh-controller/batches_integration_test.go

@@ -343,7 +343,7 @@ func TestALateMergeIsAnsweredByTheWalkOfTheLaterOne(t *testing.T) {
 func TestAFailedWalkWalksItsEarlierMergesAlone(t *testing.T) {
 	open := windowed(t)
 	everyHeadWaits(t)
-	asked := asksWithPaths(t)
+	asksWithPaths(t)
 	ctx := t.Context()
 	// Made before the cut marks their modules seen, as merges are: walked again, they are news all the same.
 	oldest := catalogueMerge("aaaa0001", "app", t0.Add(-3*time.Minute))
@@ -370,9 +370,10 @@ func TestAFailedWalkWalksItsEarlierMergesAlone(t *testing.T) {
 		!sameMerge(alone.Delivery.Merges[0], inventory.PlanMerge{Repository: "novox/mesh-catalog", Commit: middle.Commit}) {
 		t.Fatalf("the newest earlier merge was not walked alone on its own commit: %+v", alone)
 	}
-	if _, in := alone.Modules["app"]; !in || (*asked)[len(*asked)-1] != [3]string{"novox/mesh-catalog", "modules/app",
-		middle.Commit} {
-		t.Fatalf("the merge walked alone does not build app at its own commit: %v, asked %v", alone.Modules, *asked)
+	// The cut takes the first tier from the builder's keys and asks no build, so nothing is recorded as asked: the
+	// module is taken from its key at the commit the merge was walked on.
+	if app := alone.Modules["app"]; app == nil || !app.Key || app.State != "asked" || app.KeyAt != middle.Commit {
+		t.Fatalf("the merge walked alone does not build app at its own commit: %v", alone.Modules)
 	}
 	// Retried, the failed walk would name merges the search answers now.
 	if _, err := retryPlan(ctx, open, failed.ID); err == nil || !strings.Contains(err.Error(), "walked alone") {