Sends emails to all roles

The module sends emails to users in all roles in my version of Drupal, which is 5.2. I've marked this critical since the module is essentially non-functional.

The problem appears to be in the stored data structure. The module expects roles to be in the form rid=>rname, with just the selected roles, but it is stored as rid=>BOOLEAN, with all the roles as 0 or 1.

Replacing this code at line 43:

foreach($edit['recipient'] as $rid => $rname) {
$roles[]=$rid;
}

with this:

foreach($edit['recipient'] as $rid => $rname) {
if (!empty($rname)) {
$roles[]=$rid;
}
}

solves the problem for me.