$ git clone -n http://git.inferitos.ru/rpms/rear /var/lib/mock/inferit-8_8-bootstrap-build-28600-48386/root/chroot_tmpdir/scmroot/rear
Cloning into '/var/lib/mock/inferit-8_8-bootstrap-build-28600-48386/root/chroot_tmpdir/scmroot/rear'...
$ git fetch origin changed/i8c/rear-2.6-10.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/rear
 * [new tag]         changed/i8c/rear-2.6-10.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 567188d import rear-2.6-10.el8