You should be calling pbuilder as usually for the first upload to your archive (will include source) and with --binary-arch for all subsequent uploads.
It might be interesting to see why the .diff.gz is modified; it could either be a difference in the output on i386 and on amd64, or it could be a timestamp in the gz stream.
You should be calling pbuilder as usually for the first upload to your archive (will include source) and with --binary-arch for all subsequent uploads.
It might be interesting to see why the .diff.gz is modified; it could either be a difference in the output on i386 and on amd64, or it could be a timestamp in the gz stream.