$ git clone -n https://src.fedoraproject.org/rpms/libppd.git /var/lib/mock/f41-build-848412-164423/root/chroot_tmpdir/scmroot/libppd
Cloning into '/var/lib/mock/f41-build-848412-164423/root/chroot_tmpdir/scmroot/libppd'...
$ git fetch origin a550fd5d921f7f9d1f4eaaf3f772990cad502896:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libppd
 * [new ref]         a550fd5d921f7f9d1f4eaaf3f772990cad502896 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a550fd5 2305073 - libppd-2.1b1 is available