From 81e33b9391cd7adac662a697e735f989d911852e 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: Fri, 15 May 2020 22:10:50 -0400
Subject: [PATCH] fix: #8317

---
 src/topics/fork.js |  8 ++++++++
 test/topics.js     | 16 ++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/src/topics/fork.js b/src/topics/fork.js
index 40edecf6b8..15c784a926 100644
--- a/src/topics/fork.js
+++ b/src/topics/fork.js
@@ -52,6 +52,14 @@ module.exports = function (Topics) {
 
 		await Topics.updateLastPostTime(tid, Date.now());
 
+		await Promise.all([
+			Topics.setTopicFields(tid, {
+				upvotes: postData.upvotes,
+				downvotes: postData.downvotes,
+			}),
+			db.sortedSetsAdd(['topics:votes', 'cid:' + cid + ':tids:votes'], postData.votes, tid),
+		]);
+
 		plugins.fireHook('action:topic.fork', { tid: tid, fromTid: fromTid, uid: uid });
 
 		return await Topics.getTopicData(tid);
diff --git a/test/topics.js b/test/topics.js
index 80380b5a3d..0ef388fca4 100644
--- a/test/topics.js
+++ b/test/topics.js
@@ -906,6 +906,22 @@ describe('Topic\'s', function () {
 				},
 			], done);
 		});
+
+		it('should properly update topic vote count after forking', async () => {
+			const result = await topics.post({ uid: fooUid, cid: categoryObj.cid, title: 'fork vote test', content: 'main post' });
+			const reply1 = await topics.reply({ tid: result.topicData.tid, uid: fooUid, content: 'test reply 1' });
+			const reply2 = await topics.reply({ tid: result.topicData.tid, uid: fooUid, content: 'test reply 2' });
+			const reply3 = await topics.reply({ tid: result.topicData.tid, uid: fooUid, content: 'test reply 3' });
+			await posts.upvote(result.postData.pid, adminUid);
+			await posts.upvote(reply1.pid, adminUid);
+			assert.strictEqual(await db.sortedSetScore('topics:votes', result.topicData.tid), 1);
+			assert.strictEqual(await db.sortedSetScore('cid:' + categoryObj.cid + ':tids:votes', result.topicData.tid), 1);
+			const newTopic = await topics.createTopicFromPosts(adminUid, 'Fork test, vote update', [reply1.pid, reply2.pid], result.topicData.tid);
+
+			assert.strictEqual(await db.sortedSetScore('topics:votes', newTopic.tid), 1);
+			assert.strictEqual(await db.sortedSetScore('cid:' + categoryObj.cid + ':tids:votes', newTopic.tid), 1);
+			assert.strictEqual(await topics.getTopicField(newTopic.tid, 'upvotes'), 1);
+		});
 	});
 
 	describe('controller', function () {