[Xapian-devel] Duplicate docids in mset

[Jean-Francois Dockes]

Hello,

I seem to be seeing a (very unfrequent) case where I get the same document
twice inside a result list (same xapian docid as last and first entries of
consecutive msets).

This was reported by a user running tests on a "CACM test collection and
evaluating the performance with trec eval software", not under normal
usage, where it would probably not be noticed.

Is there a known condition that would cause this ? Is it worth investigating ?

Regards,

J.F. Dockes