$ git clone -n http://git.inferitos.ru/rpms/kernel /var/lib/mock/inferit-8_9-updates-build-35318-71097/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/inferit-8_9-updates-build-35318-71097/root/chroot_tmpdir/scmroot/kernel'...
$ git fetch origin changed/i8/kernel-4.18.0-513.18.1.el8_9:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/kernel
 * [new tag]         changed/i8/kernel-4.18.0-513.18.1.el8_9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f47ce75 import kernel-4.18.0-513.18.1.el8_9