From b73ffbd3cb7dd89f54351b74e0cf4d1df63f0310 Mon Sep 17 00:00:00 2001
From: Douwe Maan <douwe@gitlab.com>
Date: Wed, 15 Apr 2015 17:01:14 +0200
Subject: Fix for snippets.

---
 app/services/notification_service.rb | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/app/services/notification_service.rb b/app/services/notification_service.rb
index ab5a653d5c0..cfed7964c37 100644
--- a/app/services/notification_service.rb
+++ b/app/services/notification_service.rb
@@ -133,11 +133,13 @@ class NotificationService
     
     # Add all users participating in the thread (author, assignee, comment authors)
     participants = 
-      if target.is_a?(Commit)
+      if target.respond_to?(:participants)
+        target.participants
+      elsif target.is_a?(Commit)
         author_ids = Note.for_commit_id(target.id).pluck(:author_id).uniq
         User.where(id: author_ids)
       else
-        target.participants
+        note.mentioned_users
       end
     recipients = recipients.concat(participants)
 
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