Fix potential deadlock on session-load

[ardour.git] / libs / ardour / pannable.cc

diff --git a/libs/ardour/pannable.cc b/libs/ardour/pannable.cc
index d77c8a0e7fb0511acb30e56717abec7afdd30f57..abfb9d66c2e3aa80457dc90cd849791ccfc92fb3 100644 (file)
--- 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 ();
 }