Sudo rule requiring passwords not working correctly prompting for root password instead of user's (4281388)

Sudo rule requiring passwords not working correctly prompting for root password instead of user's password in the following rule:

%groupname ALL=(root) ALL

Configuration of targetpw setting in the /etc/sudoers file:

Defaults        targetpw

# In the default (unconfigured) configuration, sudo asks for the root password.

# This allows use of an ordinary user account for administration of a freshly # installed system. When configuring sudo, delete the two # following lines:

When targetpw is enabled, it's supposed to prompt for the root password in this scenerio:

%groupname ALL=(root) ALL

1 - Edit the /etc/sudoers file and comment out or remove the targetpw setting like below:

#Defaults targetpw