$ git clone -n https://src.fedoraproject.org/rpms/python-trimesh /var/lib/mock/f41-build-side-1-3137683-39796/root/chroot_tmpdir/scmroot/python-trimesh
Cloning into '/var/lib/mock/f41-build-side-1-3137683-39796/root/chroot_tmpdir/scmroot/python-trimesh'...
$ git fetch origin 6434ebf92bda9a128812a0643ade71d8cdace330:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-trimesh
 * [new ref]         6434ebf92bda9a128812a0643ade71d8cdace330 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6434ebf Update to 4.5.2 upstream release