--- a/program/lib/Roundcube/html.php	Sat Sep 20 12:16:50 2025 -0400
+++ b/program/lib/Roundcube/html.php	Mon Oct 06 10:34:51 2025 -0400
@@ -77,11 +77,11 @@
         }
 
         $inline_tags = array('a','span','img');
-        $suffix = $attrib['nl'] || ($content && $attrib['nl'] !== false && !in_array($tagname, $inline_tags)) ? "\n" : '';
+        $suffix = ($attrib['nl']??null) || ($content && ($attrib['nl']??false) !== false && !in_array($tagname, $inline_tags)) ? "\n" : '';
 
         $tagname = self::$lc_tags ? strtolower($tagname) : $tagname;
         if (isset($content) || in_array($tagname, self::$containers)) {
-            $suffix = $attrib['noclose'] ? $suffix : '</' . $tagname . '>' . $suffix;
+	  $suffix = ($attrib['noclose']??null) ? $suffix : '</' . $tagname . '>' . $suffix;
             unset($attrib['noclose'], $attrib['nl']);
             return '<' . $tagname  . self::attrib_string($attrib, $allowed) . '>' . $content . $suffix;
         }