$ git clone -n https://src.fedoraproject.org/rpms/python-pluggy.git /var/lib/mock/f40-build-2203995-51942/root/chroot_tmpdir/scmroot/python-pluggy
Cloning into '/var/lib/mock/f40-build-2203995-51942/root/chroot_tmpdir/scmroot/python-pluggy'...
$ git fetch origin 4f9eb5933f9c0fd22473724f66a9d957397bab85:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pluggy
 * [new ref]         4f9eb5933f9c0fd22473724f66a9d957397bab85 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4f9eb59 Unify the number of newlines used between sections