plugin sec_otr: a trigger was not returning True

src/plugins/plugin_sec_otr.py

@@ -473,7 +473,7 @@ class OTR(object):
 
     def presenceReceivedTrigger(self, entity, show, priority, statuses, profile):
         if show != "unavailable":
-            return
+            return True
         if not entity.resource:
             entity.resource = self.host.memory.getLastResource(entity, profile)  # FIXME: temporary and unsecure, must be changed when frontends are refactored
         otrctx = self.context_managers[profile].getContextForUser(entity)