Fix local bridges being disconnected on SIGHUP.

Closes #1942. Thanks to charlemagnelasse.

ChangeLog.txt

@@ -7,6 +7,7 @@ Broker:
   Closes #1960.
 - Fix QoS 0 messages not being delivered if max_queued_messages was set to 0.
   Closes #1956.
+- Fix local bridges being disconnected on SIGHUP. Closes #1942.
 
 Clients:
 - Fix mosquitto_sub being unable to terminate with Ctrl-C if a successful

src/security_default.c

@@ -1112,6 +1112,10 @@ int mosquitto_security_apply_default(void)
 #endif
 
 	HASH_ITER(hh_id, db.contexts_by_id, context, ctxt_tmp){
+		if(context->bridge){
+			continue;
+		}
+
 		/* Check for anonymous clients when allow_anonymous is false */
 		if(db.config->per_listener_settings){
 			if(context->listener){