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-rw-r--r--libs/ardour/control_protocol_manager.cc6
1 files changed, 4 insertions, 2 deletions
diff --git a/libs/ardour/control_protocol_manager.cc b/libs/ardour/control_protocol_manager.cc
index c79aa74698..00c05b2800 100644
--- a/libs/ardour/control_protocol_manager.cc
+++ b/libs/ardour/control_protocol_manager.cc
@@ -96,8 +96,10 @@ ControlProtocolManager::drop_session ()
for (list<ControlProtocolInfo*>::iterator p = control_protocol_info.begin(); p != control_protocol_info.end(); ++p) {
// otherwise the ControlProtocol instances are not recreated in set_session
- (*p)->requested = true;
- (*p)->protocol = 0;
+ if ((*p)->protocol) {
+ (*p)->requested = true;
+ (*p)->protocol = 0;
+ }
}
}
}