Merge pull request #2155 from splitbrain/linkOldMediaFilesInMM

link the old version in MM when view it

inc/template.php

@@ -1391,7 +1391,8 @@ function tpl_mediaFileDetails($image, $rev) {
     list($ext) = mimetype($image, false);
     $class    = preg_replace('/[^_\-a-z0-9]+/i', '_', $ext);
     $class    = 'select mediafile mf_'.$class;
-    $tabTitle = '<strong><a href="'.ml($image).'" class="'.$class.'" title="'.$lang['mediaview'].'">'.$image.'</a>'.'</strong>';
+    $attributes = $rev ? ['rev' => $rev] : [];
+    $tabTitle = '<strong><a href="'.ml($image, $attributes).'" class="'.$class.'" title="'.$lang['mediaview'].'">'.$image.'</a>'.'</strong>';
     if($opened_tab === 'view' && $rev) {
         printf($lang['media_viewold'], $tabTitle, dformat($rev));
     } else {