Merge "avoid link cache issues with duplicate title keys for xml dumps"

diff --git a/includes/export/XmlDumpWriter.php b/includes/export/XmlDumpWriter.php
index 9d14442..54249a8 100644 (file)
--- a/includes/export/XmlDumpWriter.php
+++ b/includes/export/XmlDumpWriter.php
@@ -207,6 +207,12 @@ class XmlDumpWriter {
         * @return string
         */
        function closePage() {
+               if ( $this->currentTitle !== null ) {
+                       $linkCache = MediaWikiServices::getInstance()->getLinkCache();
+                       // In rare cases, link cache has the same key for some pages which
+                       // might be read as part of the same batch. T220424 and T220316
+                       $linkCache->clearLink( $this->currentTitle );
+               }
                return "  </page>\n";
        }