Add a nbsp to each empty "diff-marker".

Fixes Bug 25697
Prevent collapsed table row if both pre and post lines in the diff are totally empty.

diff --git a/includes/diff/DifferenceEngine.php b/includes/diff/DifferenceEngine.php
index c01837a..c534ba0 100644 (file)
--- a/includes/diff/DifferenceEngine.php
+++ b/includes/diff/DifferenceEngine.php
@@ -1177,7 +1177,7 @@ class TableDiffFormatter extends DiffFormatter {
 
        # HTML-escape parameter before calling this
        function contextLine( $line ) {
-               return $this->wrapLine( ' ', 'diff-context', $line );
+               return $this->wrapLine( ' ', 'diff-context', $line );
        }
 
        private function wrapLine( $marker, $class, $line ) {