If somebody used hooks to create a new permission role, there was no mechanism to insert the new role into the dropdown list of roles at selection time.

Zotlabs/Access/PermissionRoles.php

@@ -308,6 +308,8 @@ class PermissionRoles {
 			]
 		];
 
+		call_hooks('list_permission_roles',$roles);
+
 		return $roles;
 	}