User role is not selected on the edit page after restrcting roles by IP

Hi there,
Following are the steps to regenerate the issue:
I put a IP range per role under the tab 'Restrict role by IP'. I logged in as an administrator and tried to edit user profiles. The roles that have IP restriction are not checked on the roles checkbox list even though those roles are assigned to the particular users. Could you please have a look into this issue? Thanks for your help in advance!