commit 23a315fae4982de5617ca4c755fc4341c5078b5a
Author: Ray Hernandez <ray.hernandez@deltak-innovation.com>
Date:   Wed Sep 2 11:13:51 2015 -0400

    Change course_modinfo to allow modules with name of '0'

diff --git a/lib/modinfolib.php b/lib/modinfolib.php
index e8a3b9f..9733ec7 100644
--- a/lib/modinfolib.php
+++ b/lib/modinfolib.php
@@ -492,7 +492,7 @@ class course_modinfo {
         // Loop through each piece of module data, constructing it
         static $modexists = array();
         foreach ($coursemodinfo->modinfo as $mod) {
-            if (empty($mod->name)) {
+            if (empty($mod->name) && $mod->name !== '0') {
                 // something is wrong here
                 continue;
             }