Deleting an account using system-config-users tool deletes its group which is being shared by other users.

Issue

• Deleting an account using system-config-users tool deletes its group which is being shared by other users.
• User's primary group information is stored in /etc/passwd file.
• When two user share same primary group and one of the users is deleted using system-config-users tool, other user looses its primary group.
• The tool should look for used group id in /etc/passwd file while deleting user account
• It should not delete the group being used by others.