diff --git a/src/main/frontend/worker/pipeline.cljs b/src/main/frontend/worker/pipeline.cljs
index bb108c1c0d..bbd614c3cd 100644
--- a/src/main/frontend/worker/pipeline.cljs
+++ b/src/main/frontend/worker/pipeline.cljs
@@ -95,6 +95,7 @@
                              (remove nil?))))
               tx-report' (or
                           (when (seq replace-tx)
+                            ;; TODO: remove this since transact! is really slow
                             (ldb/transact! conn replace-tx {:replace? true
                                                             :pipeline-replace? true}))
                           tx-report)