commit 56b2198708f52966e9014041ec3fb52494813cdd
Author: Joel Pittet <joel@pittet.ca>
Date:   Sun Feb 1 09:33:19 2015 -0800

    rendervar

diff --git a/core/themes/engines/twig/twig.engine b/core/themes/engines/twig/twig.engine
index 28ada58..0e5f620 100644
--- a/core/themes/engines/twig/twig.engine
+++ b/core/themes/engines/twig/twig.engine
@@ -127,8 +127,8 @@ function twig_render_template($template_file, $variables) {
  * @see TwigNodeVisitor
  */
 function twig_render_var($arg) {
-  // Check for numeric zero.
-  if ($arg === 0) {
+  // Check for a numeric zero int or float.
+  if ($arg === 0 || $arg === 0.0) {
     return 0;
   }