A first merge into a new repository waits kept for mesh-delivery's word, and the word's arrival asks the builds, with no timer; AC7 on the bus in both orders (issue 1146)

internal/inventory/batches.go

@@ -84,6 +84,16 @@ func (i *Inventory) AloneMerges(ctx context.Context) ([]BatchedMerge, error) {
 	return i.chainAloneMerges(ctx, c)
 }
 
+// WaitingMerges is every merge no plan answers that is not walked alone: kept, and waiting for something else to
+// happen to it (a first merge into a repository, waiting for mesh-delivery's word on it, issue 1146).
+func (i *Inventory) WaitingMerges(ctx context.Context) ([]BatchedMerge, error) {
+	c, err := i.theChain(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return i.chainWaitingMerges(ctx, c)
+}
+
 // AnswerMerge moves a merge to the plan that answers it now; an empty plan with alone leaves it waiting to
 // be walked on its own commit.
 func (i *Inventory) AnswerMerge(ctx context.Context, repository, commit, plan string, alone bool) error {