Merge pull request #1727 in FS/freeswitch from ~LAZEDO/freeswitch:bug/FS-11847 to master

* commit '23fbd609':
  FS-11847 [mod_loopback] unregister from reloadxml

src/mod/endpoints/mod_loopback/mod_loopback.c

@@ -1748,6 +1748,7 @@ SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_loopback_shutdown)
 
 	switch_event_free_subclass("loopback::bowout");
 	switch_event_free_subclass("loopback::direct");
+	switch_event_unbind_callback(loopback_reload_xml_event_handler);
 
 	return SWITCH_STATUS_SUCCESS;
 }