From 6f531d140b8398a4680567934fe66cb0ca465fbc Mon Sep 17 00:00:00 2001
From: ThibG <thib@sitedethib.com>
Date: Thu, 22 Mar 2018 10:45:48 +0100
Subject: [PATCH] Fix MENTION_RE to not match nil usernames (#6862)

---
 app/models/account.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/models/account.rb b/app/models/account.rb
index 14269860f0..c88c6ec440 100644
--- a/app/models/account.rb
+++ b/app/models/account.rb
@@ -48,7 +48,7 @@
 
 class Account < ApplicationRecord
   USERNAME_RE = /[a-z0-9_]+([a-z0-9_\.]+[a-z0-9_]+)?/i
-  MENTION_RE  = /(?<=^|[^\/[:word:]])@((#{USERNAME_RE}?)(?:@[a-z0-9\.\-]+[a-z0-9]+)?)/i
+  MENTION_RE  = /(?<=^|[^\/[:word:]])@((#{USERNAME_RE})(?:@[a-z0-9\.\-]+[a-z0-9]+)?)/i
 
   include AccountAvatar
   include AccountFinderConcern