From 7ca62b8399146ebe59d2a2e3fb3a5257cd4c5f6c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bar=C4=B1=C5=9F=20Soner=20U=C5=9Fakl=C4=B1?=
 <barisusakli@gmail.com>
Date: Thu, 6 Dec 2018 12:08:23 -0500
Subject: [PATCH] feat: closes #7070

---
 src/topics/merge.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/topics/merge.js b/src/topics/merge.js
index e97261f8d7..5095606729 100644
--- a/src/topics/merge.js
+++ b/src/topics/merge.js
@@ -1,6 +1,7 @@
 'use strict';
 
-var async = require('async');
+const async = require('async');
+const plugins = require('../plugins');
 
 module.exports = function (Topics) {
 	Topics.merge = function (tids, uid, callback) {
@@ -34,7 +35,13 @@ module.exports = function (Topics) {
 					}, next);
 				},
 			], next);
-		}, callback);
+		}, function (err) {
+			if (err) {
+				return callback(err);
+			}
+			plugins.fireHook('action:topic.merge', { uid: uid, tids: tids, mergeIntoTid: mergeIntoTid, otherTids: otherTids });
+			callback();
+		});
 	};
 
 	function findOldestTopic(tids) {