$ git clone -n https://src.fedoraproject.org/rpms/rust-picky-asn1-x509.git /var/lib/mock/f39-build-2308023-57267/root/chroot_tmpdir/scmroot/rust-picky-asn1-x509
Cloning into '/var/lib/mock/f39-build-2308023-57267/root/chroot_tmpdir/scmroot/rust-picky-asn1-x509'...
$ git fetch origin 966db4a75b1dcb198b387919b4fcde6d483d210f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-picky-asn1-x509
 * [new ref]         966db4a75b1dcb198b387919b4fcde6d483d210f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 966db4a Update to 0.12.0