[GRASS-user] Lost metadata?

[Zenon Panoussis]

Exporting a landsat tile (i.fusion.brovey'd and i.landsat.rgb'ed),
I get this error:

r.out.gdal input=007068_15m_rgbe format=GTiff output=007068_15m_rgbe.tif type=UInt16
Writing format: GTiff
Writing type:   UInt16
Input file size is 15534, 14460
0Warning 1: Lost metadata writing to GeoTIFF ... too large to fit in tag.

Reading the TIFF FAQ, I get the impression that tags are strictly
standardised, so this shouldn't happen. And anyway, this is just
landsat, so whatever tags it has should be no surprise at all to
r.out.gdal.

Is there any way to find what metadata are lost?
Is there any way to avoid losing them?

Z