Hi All,
This is related to the post Set default comment visibility.
The solution does not work for Jira 7.2.9.
It looks like there is some issue with the vm or config or lookup
when we change default to a project role there is a rendering issue.

The change is
#if ($commentLevel)
#set ($selectedCommentLevel = $commentLevel)
#else
#if (!$comment && $defaultLevelEnabled)
#set ($selectedCommentLevel = "role:10000")
#else
#set ($selectedCommentLevel = "")
#end
#endin the file system-comment-field-edit.vm
Any help is appreciated!
Thanks,
Parashar