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-rw-r--r--gtk2_ardour/editor_routes.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/gtk2_ardour/editor_routes.cc b/gtk2_ardour/editor_routes.cc
index 89732537f7..075242459e 100644
--- a/gtk2_ardour/editor_routes.cc
+++ b/gtk2_ardour/editor_routes.cc
@@ -1067,6 +1067,7 @@ EditorRoutes::sync_presentation_info_from_treeview ()
if (change) {
DEBUG_TRACE (DEBUG::OrderKeys, "... notify PI change from editor GUI\n");
_session->notify_presentation_info_change ();
+ _session->set_dirty();
}
}