From 9b51d802106df5709ea936e65891e2f0a5c70c6b Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Tue, 10 May 2022 09:37:30 -0600
Subject: [PATCH] explanatory comment

---
 gtk2_ardour/editor_tempodisplay.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gtk2_ardour/editor_tempodisplay.cc b/gtk2_ardour/editor_tempodisplay.cc
index 77d5b48822..c9b9e5d7cd 100644
--- a/gtk2_ardour/editor_tempodisplay.cc
+++ b/gtk2_ardour/editor_tempodisplay.cc
@@ -838,6 +838,9 @@ Editor::abort_tempo_map_edit ()
 	/* this drops the lock held while we have a writable copy in our per-thread pointer */
 	TempoMap::abort_update ();
 
+	/* Now update our own per-thread copy of the tempo map pointer to be
+	   the canonical one, and reconnect markers with elements of that map
+	*/
 	TempoMap::SharedPtr tmap (TempoMap::fetch());
 	reassociate_metric_markers (tmap);
 }