$ git clone -n https://src.fedoraproject.org/rpms/python-trimesh.git /var/lib/mock/f42-build-3356274-45027/root/chroot_tmpdir/scmroot/python-trimesh
Cloning into '/var/lib/mock/f42-build-3356274-45027/root/chroot_tmpdir/scmroot/python-trimesh'...
$ git fetch origin 71c9ec6e5bb4bdb84a683211ed728aba0324bdc4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-trimesh
 * [new ref]         71c9ec6e5bb4bdb84a683211ed728aba0324bdc4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71c9ec6 Update to 4.6.4 upstream release