Does HNSW search sometimes match NO_MORE_DOCS?

[vigyasharma]

We have a check to separately handle NO_MORE_DOCS while parsing the results from an HNSW approximate search. We should not be returning NO_MORE_DOCS in the first place. Creating an issue to investigate when and why this happens.

https://github.com/mikemccand/luceneutil/blob/main/src/main/knn/KnnGraphTester.java#L619-L624

[mikemccand]

I'm hoping this was a holdover from some long ago fixed bug? I'll try simply removing that check and see if anything bad happens...