$ git clone -n https://src.fedoraproject.org/rpms/vyper.git /var/lib/mock/f42-build-side-1-3533155-46342/root/chroot_tmpdir/scmroot/vyper
Cloning into '/var/lib/mock/f42-build-side-1-3533155-46342/root/chroot_tmpdir/scmroot/vyper'...
$ git fetch origin ab434e33ecd43880599e78a11bed295554250d8b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vyper
 * [new ref]         ab434e33ecd43880599e78a11bed295554250d8b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab434e3 Address two issues