Incorrect nodata values when using the -scale option in gdal_translate

[ersts]

When scaling data and converting between data types, I am experiencing unexpected results, specifically with the nodata values in the resulting image. I am running Ubuntu 9.04 with stock GDAL 1.5.2

Example ascii grid:

ncols        5 
nrows        5 
xllcorner     -2610321.0830204
yllcorner     -3330321.0830204
cellsize      4500.0
NODATA_value  -9999.0
-9999.0 -9999.0 1.2E-4 1.2E-4 1.2E-4
-9999.0 -9999.0 1.2E-3 1.2E-3 1.2E-3
-9999.0 -9999.0 1.2E-2 1.2E-2 1.2E-2
-9999.0 -9999.0 1.2E-1 1.2E-1 1.2E-1
-9999.0 -9999.0 5.2E-1 5.2E-1 5.2E-1

with the command:

gdal_translate -ot int32 -scale 0 1 0 1000 -a_nodata -9999 -of GTiff test.asc test.tif

The nodata value is reported as -9999 but in the image -9999 becomes -9999000

gdal_translate -ot Int16 -scale 0 1 0 1000 -a_nodata -9999 -of GTiff test.asc test.tif

The nodata value is reported as -9999 but in the image -9999 becomes -32768

If the scaling option is removed, the nodata values are correct in the destination image