$ git clone -n https://src.fedoraproject.org/rpms/python-trimesh.git /var/lib/mock/f41-build-side-2-python-2712540-30505/root/chroot_tmpdir/scmroot/python-trimesh
Cloning into '/var/lib/mock/f41-build-side-2-python-2712540-30505/root/chroot_tmpdir/scmroot/python-trimesh'...
$ git fetch origin 51d15b80cc475985ab94ffe9ce3825341174c133:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-trimesh
 * [new ref]         51d15b80cc475985ab94ffe9ce3825341174c133 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 51d15b8 Update to 4.4.9 upstream release