Fix #976

APY · Aug 24, 2017 · f5682e5 · f5682e5 · Quovandius · Aug 24, 2017
1 parent 1684a94
commit f5682e5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Twig/DataGridExtension.php b/Twig/DataGridExtension.php
@@ -452,7 +452,7 @@ protected function getTemplatesFromString(Twig_Environment $environment, $theme)
         $this->templates = [];
 
         $template = $environment->loadTemplate($theme);
-        while ($template !== null) {
+        while ($template instanceof \Twig_Template) {
             $this->templates[] = $template;
             $template = $template->getParent([]);
         }