From c407ffc869704125ad26cc9643a655fe1fec0c13 Mon Sep 17 00:00:00 2001
From: Fomafix <fomafix@googlemail.com>
Date: Sat, 1 Sep 2018 16:07:57 +0200
Subject: [PATCH] resourceloader: Avoid duplicate existence check

The check above with the mw.loader.register( name ) ensures that
  hasOwn.call( registry, name )
is always true.

Change-Id: I10e2a23bd5c11fbf53fd4fc59ba2e5d94f157254
---
 resources/src/startup/mediawiki.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/resources/src/startup/mediawiki.js b/resources/src/startup/mediawiki.js
index f927aade54..e665403ddb 100644
--- a/resources/src/startup/mediawiki.js
+++ b/resources/src/startup/mediawiki.js
@@ -1828,7 +1828,7 @@
 						mw.loader.register( name );
 					}
 					// Check for duplicate implementation
-					if ( hasOwn.call( registry, name ) && registry[ name ].script !== undefined ) {
+					if ( registry[ name ].script !== undefined ) {
 						throw new Error( 'module already implemented: ' + name );
 					}
 					if ( version ) {
-- 
2.20.1