Hi Ard!Very nice analysis! It's indeed a very tricky bug ;) UUIDDocId should not use WeakReferences on the one hand and equals() on the other hand. Maybe we should better return the same instance of a CombinedIndexReader in SearchIndex.getIndexReader() if possible and use a "==" comparison in UUIDDocId instead? But that's just a quick guess. Unfortunately I hadn't the time to really dig into it and I'm out of town until Wednesday. But maybe Marcel could comment on this?
Cheers, Christoph
