[Tilecache] KML SuperOverlays and Greenwich

[Gabriel Landais]

Hi,
 I'm Gabriel, a GIS fan and TileCache is a really cool tool for my
purpose. When I tried KML I came across a problem that looks like a
bug.
 My layer in tilecache.cfg :

[SCAN25KML]
type=WMS
layers=SCAN25,SCAN250_IGN
bbox=-1,47,5,48
url=http://...
extension=png

The "tiles/SCAN25KML/0/0/0.kml" :

<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://earth.google.com/kml/2.1">

  <Document>
    <Region>
      <Lod>
        <minLodPixels>256</minLodPixels><maxLodPixels>512</maxLodPixels>
      </Lod>
      <LatLonAltBox>
        <north>48.0</north><south>47.0</south>
        <east>0.0</east><west>-1.0</west>
      </LatLonAltBox>
    </Region>
[...]

My region east is maxed to 0, the four tiles split well that region,
but not up to lon 5° :(
I've tried to understand where it could come from, without success in fact :)

Cheers
Gabriel