mapnik config for reproducting error with raster edge

raster_edge.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE Map[]>
<Map srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext +over +no_defs" background-color="#ffffff">

<Style name="sfc" filter-mode="first">
  <Rule>
    <RasterSymbolizer scaling="bilinear" opacity="1"/>
  </Rule>
</Style>

<Layer name="sfc"
  srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext +over +no_defs">
    <StyleName>sfc</StyleName>
    <Datasource>
       <Parameter name="file">/work/test/sfc9.tif</Parameter>
       <Parameter name="type">gdal</Parameter>
    </Datasource>
</Layer>

</Map>