This is fairly minor, but it's leading to a lot of unnecessary extra network traffic. If Xref is defined as part of the overview.fmt set, whenever an Xref header isn't seen, nntpcached is running an xpath request on the article. Xref is normally _only_ seen if an article is crossposted, so lack of Xref header is normal and indicates single-group posting, not a need to go grab more info. Has anyone looked at patching this slightly bogus behaviour? AB
