* Optimization in Title::isAlwaysKnown

diff --git a/includes/Title.php b/includes/Title.php
index e3c4c94..567e18a 100644 (file)
--- a/includes/Title.php
+++ b/includes/Title.php
@@ -2635,9 +2635,15 @@ class Title {
         * @return bool
         */
        public function isAlwaysKnown() {
+               // If the page is form Mediawiki:message/lang, calling wfMsgWeirdKey causes
+               // the full l10n of that language to be loaded. That takes much memory and
+               // isn't needed. So we strip the language part away.
+               // Also, extension messages which are not loaded, are shown as red, because
+               // we don't call MessageCache::loadAllMessages.
+               list( $basename, /* rest */ ) = explode( '/', $this->mDbkeyform, 2 );
                return $this->isExternal()
                        || ( $this->mNamespace == NS_MAIN && $this->mDbkeyform == '' )
-                       || ( $this->mNamespace == NS_MEDIAWIKI && wfMsgWeirdKey( $this->mDbkeyform ) );
+                       || ( $this->mNamespace == NS_MEDIAWIKI && wfMsgWeirdKey( $basename ) );
        }
 
        /**