Always return string on HTMLTagFilter::getInputHTML

Follow-Up: I5c03dc543b910aab27a26a5a223341be50893cf3
Change-Id: I0bb0f2e2c95543089fbc3b12ebf45f93f9a90efc

diff --git a/includes/htmlform/HTMLTagFilter.php b/includes/htmlform/HTMLTagFilter.php
index da5e85c..eac9423 100644 (file)
--- a/includes/htmlform/HTMLTagFilter.php
+++ b/includes/htmlform/HTMLTagFilter.php
@@ -10,6 +10,6 @@ class HTMLTagFilter extends HTMLFormField {
                        // we only need the select field, HTMLForm should handle the label
                        return $tagFilterSelector;
                }
-               return;
+               return '';
        }
 }