--- a/plugins/mod_pubsub/pubsub.lib.lua	Wed Apr 26 12:05:06 2017 +0200
+++ b/plugins/mod_pubsub/pubsub.lib.lua	Wed Apr 26 12:06:41 2017 +0200
@@ -383,7 +383,7 @@
 			module:log("error", "Unable to set item: %s", err);
 			return nil, err;
 		end
-		return true;
+		return data;
 	end
 	return setmetatable(get_set, archive);
 end

--- a/util/pubsub.lua	Wed Apr 26 12:05:06 2017 +0200
+++ b/util/pubsub.lua	Wed Apr 26 12:06:41 2017 +0200
@@ -273,6 +273,7 @@
 	if not ok then
 		return nil, "internal-server-error";
 	end
+	if type(ok) == "string" then id = ok; end
 	self.events.fire_event("item-published", { node = node, actor = actor, id = id, item = item });
 	self.config.broadcaster("items", node, node_obj.subscribers, item, actor);
 	return true;