patch MediaWiki core T272386 MW1.34

core-T272386-move-inadvertent-deletion.diff

diff --git a/includes/MovePage.php b/includes/MovePage.php
index a5d0af4..7c4c3d4 100644
--- a/includes/MovePage.php
+++ b/includes/MovePage.php
@@ -216,7 +216,9 @@
 
 		if ( $this->oldTitle->equals( $this->newTitle ) ) {
 			$status->fatal( 'selfmove' );
-		} elseif ( $this->newTitle->getArticleID() && !$this->isValidMoveTarget() ) {
+		} elseif ( $this->newTitle->getArticleID( Title::READ_LATEST /* T272386 */ )
+			&& !$this->isValidMoveTarget()
+		) {
 			// The move is allowed only if (1) the target doesn't exist, or (2) the target is a
 			// redirect to the source, and has no history (so we can undo bad moves right after
 			// they're done).