Summary:
This line should be searching for xq, but the current line is searching the first 5 line in xb. It should be a bug.
Pull Request resolved: https://github.com/facebookresearch/faiss/pull/2419
Reviewed By: alexanderguzhva
Differential Revision: D39167612
Pulled By: mdouze
fbshipit-source-id: fc2534fa799dcbedae1af7881f5d70026b4de675