Index: wp-admin/includes/misc.php
===================================================================
--- wp-admin/includes/misc.php	(revision 51903)
+++ wp-admin/includes/misc.php	(working copy)
@@ -1281,7 +1281,7 @@
 	<link id="wp-admin-canonical" rel="canonical" href="<?php echo esc_url( $filtered_url ); ?>" />
 	<script>
 		if ( window.history.replaceState ) {
-			window.history.replaceState( null, null, document.getElementById( 'wp-admin-canonical' ).href + window.location.hash );
+			window.history.replaceState( window.history.state, null, document.getElementById( 'wp-admin-canonical' ).href + window.location.hash );
 		}
 	</script>
 	<?php