$ git clone -n http://git.inferitos.ru/rpms/ppc64-diag /var/lib/mock/inferit-10_0-bootstrap-build-74012-151203/root/chroot_tmpdir/scmroot/ppc64-diag
Cloning into '/var/lib/mock/inferit-10_0-bootstrap-build-74012-151203/root/chroot_tmpdir/scmroot/ppc64-diag'...
$ git fetch origin changed/i10c-beta/ppc64-diag-2.7.9-7.el10:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/ppc64-diag
 * [new tag]         changed/i10c-beta/ppc64-diag-2.7.9-7.el10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd5ad29 import ppc64-diag-2.7.9-7.el10