Fix broken gated repos (#2959)

Fixes a bug introduced in
#2923. I'll also try to
add a test case.

server/pipeline/create.go

@@ -87,10 +87,6 @@ func Create(ctx context.Context, _store store.Store, repo *model.Repo, pipeline
 		return nil, ErrFiltered
 	}
 
-	if err := updatePipelinePending(ctx, _store, pipeline, repo, repoUser); err != nil {
-		return nil, err
-	}
-
 	pipeline = setPipelineStepsOnPipeline(pipeline, pipelineItems)
 
 	// persist the pipeline config for historical correctness, restarts, etc
@@ -116,6 +112,10 @@ func Create(ctx context.Context, _store store.Store, repo *model.Repo, pipeline
 		return pipeline, nil
 	}
 
+	if err := updatePipelinePending(ctx, _store, pipeline, repo, repoUser); err != nil {
+		return nil, err
+	}
+
 	pipeline, err = start(ctx, _store, pipeline, repoUser, repo, pipelineItems)
 	if err != nil {
 		msg := fmt.Sprintf("failed to start pipeline for %s", repo.FullName)