$ git clone -n https://src.fedoraproject.org/rpms/rust-picky-asn1.git /var/lib/mock/f39-build-2272587-54915/root/chroot_tmpdir/scmroot/rust-picky-asn1
Cloning into '/var/lib/mock/f39-build-2272587-54915/root/chroot_tmpdir/scmroot/rust-picky-asn1'...
$ git fetch origin 576381f5751a741def73ce5b63dad255877b94d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-picky-asn1
 * [new ref]         576381f5751a741def73ce5b63dad255877b94d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 576381f Update to 0.8.0