Permit the use of `is_null` in templates when running in the enterprise mode

diff --git a/wcfsetup/install/files/lib/system/template/TemplateScriptingCompiler.class.php b/wcfsetup/install/files/lib/system/template/TemplateScriptingCompiler.class.php
index 5ccb34ecb3d675e0da1723201d92f17eaee2b0b9..358a42ef27ee9eb829edd6290c1541ef095174cb 100644 (file)
--- a/wcfsetup/install/files/lib/system/template/TemplateScriptingCompiler.class.php
+++ b/wcfsetup/install/files/lib/system/template/TemplateScriptingCompiler.class.php
@@ -76,6 +76,7 @@ class TemplateScriptingCompiler {
                'implode',
                'in_array',
                'is_array',
+               'is_null',
                'is_numeric',
                'is_object',
                'iterator_count',