Reporter: Ldp
[Submitted to the original trac issue database at 10.56pm, Wednesday, 6th January 2010]

I fetched [http://www.informationfreeway.org/api/0.6/*%5B3dshapes:note=Incomplete%20outline%5D]

And received a file with 2 ways (and associated nodes). The ways were missing the tags with a colon in the key value.

Nodes etc left off, for brevity:

  <way id='44173855' user='3dShapes' uid='195219' timestamp='2009-11-12T13:25:58Z' version='1' changeset='3098117'>
    <nd ref='561158809'/>
    <nd ref='561157901'/>
    <nd ref='561158808'/>
    <nd ref='561158809'/>
    <tag k='building' v='yes'/>
    <tag k='source' v='3dShapes'/>
  </way>
  <way id='44173896' user='3dShapes' uid='195219' timestamp='2009-11-12T13:26:07Z' version='1' changeset='3098117'>
    <nd ref='561157898'/>
    <nd ref='561157895'/>
    <nd ref='561157904'/>
    <nd ref='561157898'/>
    <tag k='building' v='yes'/>
    <tag k='source' v='3dShapes'/>
  </way>

Links to these objects, which show these tags are present on the actual objects:
[http://www.openstreetmap.org/browse/way/44173855]
[http://www.openstreetmap.org/browse/way/44173896]

Suffice to say, if I download objects with such tags, work with them, and upload the results, there's a loss of information.