From 228556ab9c7356b868c33da47fcdc6362e4b5a93 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Thu, 13 Oct 2016 19:57:50 +0200
Subject: [PATCH] fix panner reset when switching to aux-sends -- fixes #6893

---
 libs/ardour/pannable.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libs/ardour/pannable.cc b/libs/ardour/pannable.cc
index d77c8a0e7f..abfb9d66c2 100644
--- a/libs/ardour/pannable.cc
+++ b/libs/ardour/pannable.cc
@@ -107,6 +107,12 @@ Pannable::set_panner (boost::shared_ptr<Panner> p)
 void
 Pannable::value_changed ()
 {
+	if (!has_state ()) {
+		// prevent the GUI from resetting panners
+		// e.g. when switching to aux-sends and back.
+		_has_state = true;
+	}
+
 	_session.set_dirty ();
 }