$ git clone -n https://src.fedoraproject.org/rpms/python-trimesh.git /var/lib/mock/f41-build-822933-153319/root/chroot_tmpdir/scmroot/python-trimesh
Cloning into '/var/lib/mock/f41-build-822933-153319/root/chroot_tmpdir/scmroot/python-trimesh'...
$ git fetch origin a9e43b555c922e2fa4b4527347fb9aabc579c5f9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-trimesh
 * [new ref]         a9e43b555c922e2fa4b4527347fb9aabc579c5f9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9e43b5 Make the easy extra metapackage noarch