$ git clone -n https://src.fedoraproject.org/rpms/crypto-policies.git /var/lib/mock/f41-build-side-1-2818473-33010/root/chroot_tmpdir/scmroot/crypto-policies
Cloning into '/var/lib/mock/f41-build-side-1-2818473-33010/root/chroot_tmpdir/scmroot/crypto-policies'...
$ git fetch origin c4bf06ede2e8b5be8f694f86a04b398c31a1153f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/crypto-policies
 * [new ref]         c4bf06ede2e8b5be8f694f86a04b398c31a1153f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c4bf06e Update from upstream (__openssl_block_sha1_signatures in SHA1)