kickstart set the systems HOSTNAME in /etc/sysconfig/network to be the name resolved from the DHCP boot. It accespts a new IP address to give the the new system, but keeps the kickstart name. I fix this in the post processing code, but kickstart ought to have an option on the network command to set it
This has been added to a list of future installer features.
Should be fixed in Pinstripe beta.
*** Bug 18814 has been marked as a duplicate of this bug. ***