$ git clone -n https://src.fedoraproject.org/rpms/d-spy.git /var/lib/mock/f42-build-side-1-3500872-45971/root/chroot_tmpdir/scmroot/d-spy
Cloning into '/var/lib/mock/f42-build-side-1-3500872-45971/root/chroot_tmpdir/scmroot/d-spy'...
$ git fetch origin ab81af6d11fcc096b57878d9003ccb01dfc32cfb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/d-spy
 * [new ref]         ab81af6d11fcc096b57878d9003ccb01dfc32cfb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab81af6 Update to 48.0