$ git clone -n https://github.com/fedora-riscv/cryptobone.git /var/lib/mock/f39-build-2398304-60544/root/chroot_tmpdir/scmroot/cryptobone
Cloning into '/var/lib/mock/f39-build-2398304-60544/root/chroot_tmpdir/scmroot/cryptobone'...
$ git fetch origin ece9897b6fe44a609a953c49043c21ab30ffb92c:KOJI_FETCH_HEAD
From https://github.com/fedora-riscv/cryptobone
 * [new ref]         ece9897b6fe44a609a953c49043c21ab30ffb92c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ece9897 Rebuild for f39