<?xml version='1.0' encoding='UTF-8'?>
<osmChange version="0.6" generator="Osmosis 0.41">
  <modify>
    <node id="31101" version="1" timestamp="2011-11-11T00:11:11Z" lat="47" lon="81">
        <tag k="amenity" v="cafe"/>
    </node>
  </modify>

  <modify>
    <relation id="31101" version="1" timestamp="2011-11-11T00:11:11Z">
      <member type="way" ref="31002" role="outer"/>
      <member type="way" ref="31003" role="outer"/>
      <tag k="type" v="multipolygon"/>
      <tag k="building" v="yes"/>
    </relation>
  </modify>

  <!-- modify relation does create duplicate polygon -->
  <modify>
    <relation id="32901" version="1" timestamp="2011-11-11T00:11:11Z">
      <member type="way" ref="32101" role="outer"/>
      <tag k="type" v="multipolygon"/>
      <tag k="building" v="office"/>
    </relation>
  </modify>
</osmChange>
