$ git clone -n http://git.inferitos.ru/rpms/sos /var/lib/mock/inferit-8_8-bootstrap-build-28629-48386/root/chroot_tmpdir/scmroot/sos
Cloning into '/var/lib/mock/inferit-8_8-bootstrap-build-28629-48386/root/chroot_tmpdir/scmroot/sos'...
$ git fetch origin changed/i8c/sos-4.6.0-2.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/sos
 * [new tag]         changed/i8c/sos-4.6.0-2.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf80acb import sos-4.6.0-2.el8