GTiff COPY_SRC_OVERVIEWS cannot deal with unusual source overview sizes
|Reported by:||Even Rouault||Owned by:||Even Rouault|
Sometimes overviews not created by GDAL, such as internal OZI overviews, have sizes that are not exactly consistant with the formula that GDAL uses to create its overviews.
For example, for a 3303x3080 raster, the overview level of a factor 10 is 330x308 for OZI and 331x308 for GDAL
This causes the COPY_SRC_OVERVIEWS option to fail