Fix subtle memory leak in nbr_intersection primitive#3858
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rapids-bot[bot] merged 1 commit intorapidsai:branch-23.10from Sep 13, 2023
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Closes https://github.com/rapidsai/graph_dl/issues/259
A customer found a subtle memory leak in Jaccard similarity. Tracked it down to this subtle error.
major_nbr_indicesis anstd::optionalthat is initialized tostd::nullopt. Overwriting the dereferenced entry replaces the value but does not mark the optional as containing a value. So the resulting value is never destroyed.