From 5ef868e767dfcc27a1ece9eadbf6366511b9862e Mon Sep 17 00:00:00 2001
From: nick_m <mainsbridge@gmail.com>
Date: Tue, 13 Jan 2015 22:52:02 +1100
Subject: [PATCH] Don't reuse _optimization_iterator - fixes crash on multiple
 note delete undo.

---
 gtk2_ardour/midi_region_view.cc | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/gtk2_ardour/midi_region_view.cc b/gtk2_ardour/midi_region_view.cc
index b9660af517..6d4555731f 100644
--- a/gtk2_ardour/midi_region_view.cc
+++ b/gtk2_ardour/midi_region_view.cc
@@ -1117,17 +1117,11 @@ MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
 NoteBase*
 MidiRegionView::find_canvas_note (NoteType note)
 {
-	if (_optimization_iterator != _events.end()) {
-		++_optimization_iterator;
-	}
+	Events::iterator it;
 
-	if (_optimization_iterator != _events.end() && (*(*_optimization_iterator)->note()) == note) {
-		return *_optimization_iterator;
-	}
-
-	for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
-		if (*((*_optimization_iterator)->note()) == note) {
-			return *_optimization_iterator;
+	for (it = _events.begin(); it != _events.end(); ++it) {
+		if (*((*it)->note()) == note) {
+			return *it;
 		}
 	}