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Samuel Susla
d1e75517d1
Summary: Changelog: [internal] [This assumption](https://fburl.com/diffusion/yeqtvxru) in `~Scheduler` might not be completely correct. There can be a race between JS thread and main thread. With main thread settings delegate_ to nullptr and JS thread reading the value. Even though they always happen one after the other, JS thread can have the value of delegate_ in its cache line and changing it from main thread might not invalidate it right away. Reviewed By: mdvacca Differential Revision: D29233092 fbshipit-source-id: 390e773283a745742d78152b9921c9ce21148a4c