$ git clone -n http://git.inferitos.ru/rpms/systemd /var/lib/mock/inferit-8_10-bootstrap-build-38017-75799/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/inferit-8_10-bootstrap-build-38017-75799/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin changed/i8c-beta/systemd-239-81.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/systemd
 * [new tag]         changed/i8c-beta/systemd-239-81.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fac6f69 import systemd-239-81.el8