$ git clone -n https://src.fedoraproject.org/rpms/python-trimesh.git /var/lib/mock/f42-build-3487034-45834/root/chroot_tmpdir/scmroot/python-trimesh
Cloning into '/var/lib/mock/f42-build-3487034-45834/root/chroot_tmpdir/scmroot/python-trimesh'...
$ git fetch origin 7b433bed9b4d550ec65ecdef39e1b3261ee4e64b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-trimesh
 * [new ref]         7b433bed9b4d550ec65ecdef39e1b3261ee4e64b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b433be Update to 4.6.6 upstream release