(RHEL 8) rd.live.check enabled by default

The rd.live.check (previously 'mediacheck') appears to be enabled by default when running a KS install.

In my KS file I'm running the install type as 'text' and do not have any reference to 'mediacheck' or 'rd.live.check'.

The documentation is for RHEL 7 (I don't see one yet for 8) but it says that this needs to be explicitly referenced in the KS file otherwise it won't be enabled.

"Options presented without the "=" sign do not accept any values or parameters. For example, the rd.live.check option forces Anaconda to verify the installation media before starting the installation; if this option is present, the check will be performed, and if it is not present, the check will be skipped. "
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/installation_guide/chap-anaconda-boot-options#list-boot-options-sources

However, my attached screenshot shows that it's calling rd.live.check in the boot command line. It was a quick screenshot before the window disappeared, hence the lack of the full 'http' line, but the rd.live.check is listed prior to that.

Any thoughts here, am I missing something? Thanks for any help you can give!