fix crash when copy'ing latent plugins

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

diff --git a/libs/ardour/route_group_member.cc b/libs/ardour/route_group_member.cc
index d0701f57da3bfbb3298f7abe3afbf1bed95f7b89..280d193fba1d90dc11b3cff20b18c878529aa2ff 100644 (file)
--- a/libs/ardour/route_group_member.cc
+++ b/libs/ardour/route_group_member.cc
@@ -39,9 +39,10 @@ RouteGroupMember::set_route_group (RouteGroup *rg)
 bool
 RouteGroupMember::use_group (PBD::Controllable::GroupControlDisposition gcd, bool (RouteGroup::*predicate)(void) const) const
 {
-       return (gcd != PBD::Controllable::NoGroup) &&
-               _route_group &&
-               (_route_group->*predicate)() &&
-               (((_route_group->is_active()) && (gcd != PBD::Controllable::InverseGroup)) ||
-                ((!_route_group->is_active()) && (gcd == PBD::Controllable::InverseGroup)));
+       bool active_for_predicate = _route_group && (_route_group->*predicate)() && _route_group->is_active();
+
+       return ((gcd != PBD::Controllable::NoGroup) && (gcd != PBD::Controllable::ForGroup)) &&
+               _route_group && 
+               ((active_for_predicate && (gcd != PBD::Controllable::InverseGroup)) ||
+                (!active_for_predicate && (gcd == PBD::Controllable::InverseGroup)));
 }