$ git clone -n https://src.fedoraproject.org/rpms/rust-vtparse.git /var/lib/mock/f41-build-side-1-3099416-39334/root/chroot_tmpdir/scmroot/rust-vtparse
Cloning into '/var/lib/mock/f41-build-side-1-3099416-39334/root/chroot_tmpdir/scmroot/rust-vtparse'...
$ git fetch origin 8ed483bdbb7774e4b36f7026b08513dc12336f41:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-vtparse
 * [new ref]         8ed483bdbb7774e4b36f7026b08513dc12336f41 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ed483b no longer needed