$ git clone -n https://github.com/fedora-riscv/cryptlib.git /var/lib/mock/f39-build-2398168-60541/root/chroot_tmpdir/scmroot/cryptlib
Cloning into '/var/lib/mock/f39-build-2398168-60541/root/chroot_tmpdir/scmroot/cryptlib'...
$ git fetch origin cb6ce21fcbe1b31d04536224a686818e28880fed:KOJI_FETCH_HEAD
From https://github.com/fedora-riscv/cryptlib
 * [new ref]         cb6ce21fcbe1b31d04536224a686818e28880fed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb6ce21 Rebuild for f39