$ git clone -n https://src.fedoraproject.org/rpms/fwupd.git /var/lib/mock/f41-build-1005894-17298/root/chroot_tmpdir/scmroot/fwupd
Cloning into '/var/lib/mock/f41-build-1005894-17298/root/chroot_tmpdir/scmroot/fwupd'...
$ git fetch origin 34a5b2248550dc761b729ce3708386749969123c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fwupd
 * [new ref]         34a5b2248550dc761b729ce3708386749969123c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 34a5b22 New upstream release