$ git clone -n https://src.fedoraproject.org/rpms/lib2geom.git /var/lib/mock/f40-build-2200089-51762/root/chroot_tmpdir/scmroot/lib2geom
Cloning into '/var/lib/mock/f40-build-2200089-51762/root/chroot_tmpdir/scmroot/lib2geom'...
$ git fetch origin 85be32125cfa8cc406a35945e914b9c011f97272:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lib2geom
 * [new ref]         85be32125cfa8cc406a35945e914b9c011f97272 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 85be321 disable packit on epel