building polygon with invalid geom.xml

<?xml version='1.0' encoding='UTF-8'?>
<osm version='0.6' upload='true' generator='JOSM'>
  <node id='-20' action='modify' visible='true' lat='0.007545848364784001' lon='-0.042220818353617504' />
  <node id='-18' action='modify' visible='true' lat='0.024254511946816243' lon='-0.01563068594367967' />
  <node id='-16' action='modify' visible='true' lat='-6.288206988774027E-4' lon='0.009432310483254975' />
  <node id='-14' action='modify' visible='true' lat='-0.024883332587896705' lon='-0.04545475337644778' />
  <node id='-12' action='modify' visible='true' lat='-0.03296816910796113' lon='0.010240794238962547' />
  <node id='-10' action='modify' visible='true' lat='0.007006859198660702' lon='-0.025691817125818313' />
  <node id='-8' action='modify' visible='true' lat='0.013115403033600963' lon='-0.016169675114151388' />
  <node id='-6' action='modify' visible='true' lat='7.186522272704126E-4' lon='-0.0035034296080661336' />
  <node id='-4' action='modify' visible='true' lat='-0.0053898916967739215' lon='-0.012217087864025493' />
  <way id='-24' action='modify' visible='true'>
    <nd ref='-20' />
    <nd ref='-18' />
    <nd ref='-16' />
    <nd ref='-14' />
    <nd ref='-12' />
    <nd ref='-20' />
  </way>
  <way id='-22' action='modify' visible='true'>
    <nd ref='-10' />
    <nd ref='-8' />
    <nd ref='-6' />
    <nd ref='-4' />
    <nd ref='-10' />
  </way>
  <relation id='-26' action='modify' visible='true'>
    <member type='way' ref='-24' role='outer' />
    <member type='way' ref='-22' role='inner' />
    <tag k='building' v='yes' />
    <tag k='type' v='multipolygon' />
  </relation>
</osm>