+// Make sure that object caching does not undermine the ChronologyProtector improvements
+if ( $wgRequest->getCookie( 'UseDC', '' ) === 'master' ) {
+ // The user is pinned to the primary DC, meaning that they made recent changes which should
+ // be reflected in their subsequent web requests. Avoid the use of interim cache keys because
+ // they use a blind TTL and could be stale if an object changes twice in a short time span.