$ git clone -n https://src.fedoraproject.org/rpms/cepces.git /var/lib/mock/f40-build-2336709-59475/root/chroot_tmpdir/scmroot/cepces
Cloning into '/var/lib/mock/f40-build-2336709-59475/root/chroot_tmpdir/scmroot/cepces'...
$ git fetch origin dca8cc5aa1dcf2c4d541c37c2c3f77ccf7b5e767:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cepces
 * [new ref]         dca8cc5aa1dcf2c4d541c37c2c3f77ccf7b5e767 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dca8cc5 Fix cepces version