MergeHistory: Duplicate watchers on history merge

Bug: T132130
Change-Id: Ibb2be4f6f975f8f3c542689530fc120f8a464914

diff --git a/includes/MergeHistory.php b/includes/MergeHistory.php
index 9d63869..b969e03 100644 (file)
--- a/includes/MergeHistory.php
+++ b/includes/MergeHistory.php
@@ -24,6 +24,7 @@
  *
  * @file
  */
+use MediaWiki\MediaWikiServices;
 use Wikimedia\Timestamp\TimestampException;
 use Wikimedia\Rdbms\IDatabase;
 
@@ -335,6 +336,10 @@ class MergeHistory {
                }
                $this->dest->invalidateCache(); // update histories
 
+               // Duplicate watchers of the old article to the new article on history merge
+               $store = MediaWikiServices::getInstance()->getWatchedItemStore();
+               $store->duplicateAllAssociatedEntries( $this->source, $this->dest );
+
                // Update our logs
                $logEntry = new ManualLogEntry( 'merge', 'merge' );
                $logEntry->setPerformer( $user );