Index: boost/thread_safe_signals/detail/signal_template.hpp
===================================================================
--- boost/thread_safe_signals/detail/signal_template.hpp	(revisão 242)
+++ boost/thread_safe_signals/detail/signal_template.hpp	(cópia de trabalho)
@@ -336,6 +336,7 @@
 					{
 						shared_ptr<invocation_state> newState(new invocation_state(*_shared_state));
 						_shared_state = newState;
+						newState.reset(); // _shared_state.unique() must be true
 						nolock_cleanup_connections(true, _shared_state->connection_bodies.begin());
 					}else
 					{