Sometimes, articles are still present in the tradspool directory though they have expired (no longer in the overview database, and with an article number lower than the low water mark of the newsgroup).
Seen with groupbaseexpiry set to true, and with crossposted articles.
Their storage tokens are sometimes still in the history file, sometimes not.
The bug may also affect other storage methods (timecaf, timehash).
The bug may be unrelated to the setting of groupbaseexpiry (when it is false, it may also happen).
The bug may also affect articles posted to only one group (though not reported).
Sometimes, articles are still present in the tradspool directory though they have expired (no longer in the overview database, and with an article number lower than the low water mark of the newsgroup). Seen with groupbaseexpiry set to true, and with crossposted articles. Their storage tokens are sometimes still in the history file, sometimes not.
The bug may also affect other storage methods (timecaf, timehash). The bug may be unrelated to the setting of groupbaseexpiry (when it is false, it may also happen). The bug may also affect articles posted to only one group (though not reported).
This ticket would need more investigation.