Fully restore ARDOUR::SoloSafeControl state

This is part of a fix for bug #7025 which means the id property of
PBD::Controllable is restored and a new id is not generated at first save.

diff --git a/libs/ardour/solo_safe_control.cc b/libs/ardour/solo_safe_control.cc
index 92c6c9ec206305aa9d227ae86ef2886ac1d814cc..01d56ddf58eed536a5c54e66d1d687a3eb97684b 100644 (file)
--- a/libs/ardour/solo_safe_control.cc
+++ b/libs/ardour/solo_safe_control.cc
@@ -66,8 +66,12 @@ SoloSafeControl::get_value () const
 }
 
 int
-SoloSafeControl::set_state (XMLNode const & node, int)
+SoloSafeControl::set_state (XMLNode const & node, int version)
 {
+       if (SlavableAutomationControl::set_state(node, version)) {
+               return -1;
+       }
+
        XMLProperty const * prop;
 
        if ((prop = node.property ("solo-safe")) != 0) {