commit 6a3984fe0f94914cb4c3a1e6f809d520341a6797
Author: Chris Wharton <chrisw@catalyst.net.nz>
Date:   Fri Aug 3 13:38:23 2012 +1200

    comment/locallib.php: Fix broken comments report
    
    WR96765: Workaround for issue MDL-31010
    Signed-off-by: Chris Wharton <chrisw@catalyst.net.nz>

diff --git a/comment/locallib.php b/comment/locallib.php
index fd62b61..079bf00 100644
--- a/comment/locallib.php
+++ b/comment/locallib.php
@@ -127,6 +127,10 @@ class comment_manager {
                 $this->cm = get_coursemodule_from_id('', $this->context->instanceid);
                 $this->setup_course($this->cm->course);
                 $this->modinfo = get_fast_modinfo($this->course);
+                if (!isset($this->modinfo->cms[$this->cm->id]->modname)) {
+                    $this->pluginname = $this->cm->modname;
+                    break;
+                }
                 $this->pluginname = $this->modinfo->cms[$this->cm->id]->modname;
                 break;
         }