$ git clone -n https://src.fedoraproject.org/rpms/vyper.git /var/lib/mock/f42-build-side-1-3534278-46548/root/chroot_tmpdir/scmroot/vyper
Cloning into '/var/lib/mock/f42-build-side-1-3534278-46548/root/chroot_tmpdir/scmroot/vyper'...
$ git fetch origin d5c403e3a72afdaf766ce91c7905713a0aef303f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vyper
 * [new ref]         d5c403e3a72afdaf766ce91c7905713a0aef303f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d5c403e Vyper ver. 0.4.2