Comment 9 for bug 993426

It looks like a regular REST call so the probably easiest fix would be to extend the regex matching the volatile data URLs. If you have a recent version, add something like

VfilePatternEx: /pks/lookup.op.get

and for an older version, add a modified version of VfilePattern, maybe something like:

VfilePattern = (^|.*/)(Index|Packages(\\.gz|\\.bz2|\\.lzma|\\.xz)?|InRelease|Release|mirrors\\.txt|.*\\.gpg|NEWS\\.Debian|Sources(\\.gz|\\.bz2|\\.lzma|\\.xz)?|release|index\\.db-.*\\.gz|Contents-[^/]*(\\.gz|\\.bz2|\\.lzma|\\.xz)?|pkglist[^/]*\\.bz2|rclist[^/]*\\.bz2|meta-release[^/]*|Translation[^/]*(\\.gz|\\.bz2|\\.lzma|\\.xz)?|MD5SUMS|SHA256SUMS|SHA1SUMS|((setup|setup-legacy)(\\.ini|\\.bz2|\\.hint)(\\.sig)?)|mirrors\\.lst|repo(index|md)\\.xml(\\.asc|\\.key)?|directory\\.yast|products|content(\\.asc|\\.key)?|media|filelists\\.xml\\.gz|filelists\\.sqlite\\.bz2|repomd\\.xml|packages\\.[a-zA-Z][a-zA-Z]\\.gz|info\\.txt|license\\.tar\\.gz|license\\.zip|.*\\.(db|files|abs)(\\.tar(\\.gz|\\.bz2|\\.lzma|\\.xz))?|metalink\\?repo|.*prestodelta\\.xml\\.gz|repodata/.*\\.(xml|sqlite)(\\.gz|\\.bz2|\\.lzma|\\.xz)?|\\.treeinfo|vmlinuz|(initrd|product|squashfs|updates)\\.img)$|/dists/.*/installer-[^/]+/[^0-9][^/]+/images/.*|/pks/lookup.op.get