$ git clone -n https://src.fedoraproject.org/rpms/rust-add-determinism.git /var/lib/mock/f41-build-1040724-18950/root/chroot_tmpdir/scmroot/rust-add-determinism
Cloning into '/var/lib/mock/f41-build-1040724-18950/root/chroot_tmpdir/scmroot/rust-add-determinism'...
$ git fetch origin 707aceb971a29dd7ce5a24e071867f12dea75c13:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-add-determinism
 * [new ref]         707aceb971a29dd7ce5a24e071867f12dea75c13 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 707aceb Version 0.3.0