$ git clone -n http://git.inferitos.ru/rpms/rhel-system-roles /var/lib/mock/inferit-8_10-bootstrap-build-37967-75799/root/chroot_tmpdir/scmroot/rhel-system-roles
Cloning into '/var/lib/mock/inferit-8_10-bootstrap-build-37967-75799/root/chroot_tmpdir/scmroot/rhel-system-roles'...
$ git fetch origin changed/i8c-beta/rhel-system-roles-1.23.0-2.21.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/rhel-system-roles
 * [new tag]         changed/i8c-beta/rhel-system-roles-1.23.0-2.21.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04ddc6e import rhel-system-roles-1.23.0-2.21.el8