$ git clone -n https://src.fedoraproject.org/rpms/datovka.git /var/lib/mock/f38-build-711017-93654/root/chroot_tmpdir/scmroot/datovka
Cloning into '/var/lib/mock/f38-build-711017-93654/root/chroot_tmpdir/scmroot/datovka'...
$ git fetch origin ee0943c49e23404a3b8775feba9eb247c1f81b81:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/datovka
 * [new ref]         ee0943c49e23404a3b8775feba9eb247c1f81b81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ee0943c New version