$ git clone -n http://git.inferitos.ru/rpms/mrtg /var/lib/mock/inferit-10_0-bootstrap-build-97709-182483/root/chroot_tmpdir/scmroot/mrtg
Cloning into '/var/lib/mock/inferit-10_0-bootstrap-build-97709-182483/root/chroot_tmpdir/scmroot/mrtg'...
$ git fetch origin changed/i10c-beta/mrtg-2.17.10-11.el10:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/mrtg
 * [new tag]         changed/i10c-beta/mrtg-2.17.10-11.el10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d0dcc9 import mrtg-2.17.10-11.el10