f9 yum update "setup" - passwd file change

[Mike <mike cloaked gmail com>]

After updating my system today for the first time in a week, I note that
there was an update to "setup" - which created /etc/passwd.rpmnew 

This is quite different to the original file - 

What if anything needs to be done?

Should the relevant lines be copied over to the original file? 
Or should the system not be touched?