$ git clone -n https://src.fedoraproject.org/rpms/python-usort.git /var/lib/mock/f41-build-side-1-2881423-34468/root/chroot_tmpdir/scmroot/python-usort
Cloning into '/var/lib/mock/f41-build-side-1-2881423-34468/root/chroot_tmpdir/scmroot/python-usort'...
$ git fetch origin 7144a37959ee08f08ace21d0ce21a5e3ac1b2a12:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-usort
 * [new ref]         7144a37959ee08f08ace21d0ce21a5e3ac1b2a12 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7144a37 Update to 1.0.8.post1 upstream release