$ git clone -n https://src.fedoraproject.org/rpms/crypto-policies.git /var/lib/mock/f39-build-1545060-36675/root/chroot_tmpdir/scmroot/crypto-policies
Cloning into '/var/lib/mock/f39-build-1545060-36675/root/chroot_tmpdir/scmroot/crypto-policies'...
$ git fetch origin aae062d68c327fd7c9fb3308a96790aef2f7c1e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/crypto-policies
 * [new ref]         aae062d68c327fd7c9fb3308a96790aef2f7c1e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aae062d Update from upstream (BSI, krb5 reorder, EMS...)