Hello, There's #988289 reported against htmldoc which is the unfortunate result of issuing a DLA when jessie was LTS and was marked as no-dsa for stretch *and* both had the same version.
Whilst I'll fix this for stretch (already sponsored the upload for buster), there are more such bugs for stretch -> buster (eg: [1] (-> fixed already), etc. Maybe we should keep an eye on such issues and while we're doing DLAs, we can take care of -pu uploads, at least if the versions are the same for LTS and LTS+1 so we don't run into these? [1]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=964274#15 - u