$ git clone -n https://src.fedoraproject.org/rpms/python-nudatus.git /var/lib/mock/f40-build-2027895-47335/root/chroot_tmpdir/scmroot/python-nudatus
Cloning into '/var/lib/mock/f40-build-2027895-47335/root/chroot_tmpdir/scmroot/python-nudatus'...
$ git fetch origin 2861ae2b1f24a0065bf2e435e822352eef285d4e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-nudatus
 * [new ref]         2861ae2b1f24a0065bf2e435e822352eef285d4e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2861ae2 Spec cleanup: Remove redundant constructs