Fix ATAV GUI property cleanup

AutomationTimeAxisView::state_id() requires a stripable
(stripable == automatable + parameter OR  stripable + control)

diff --git a/gtk2_ardour/automation_time_axis.cc b/gtk2_ardour/automation_time_axis.cc
index f65d2282b3961afdaa4a339063a11752a17e0658..74f4470839be6b6db8643b83ea80d52de837b109 100644 (file)
--- a/gtk2_ardour/automation_time_axis.cc
+++ b/gtk2_ardour/automation_time_axis.cc
@@ -313,13 +313,16 @@ AutomationTimeAxisView::AutomationTimeAxisView (
 
 AutomationTimeAxisView::~AutomationTimeAxisView ()
 {
-       cleanup_gui_properties ();
+       if (_stripable) {
+               cleanup_gui_properties ();
+       }
        delete _view;
 }
 
 void
 AutomationTimeAxisView::route_going_away ()
 {
+       cleanup_gui_properties ();
        _stripable.reset ();
 }