Comment 7 for bug 827555

When you fix this, can you make sure that the information is exposed through the API as follows:

  spph.package_creator = original uploader (in Debian), i.e. Changed-By
  spph.package_maintainer = maintainer (in Debian)
  spph.creator = person who the sync is on behalf of (the sponsoree or user for non-sponsored syncs)

  spph.package_signer = sponsor or blank for non-sponsored syncs

  -- or (if you want to keep package_* for Debian data) --

  spph.package_signer = person who uploaded to Debian (sponsor or DD if a non-sponsored upload), if this information is available
  spph.signer = sponsor or blank for non-sponsored syncs