[Backport release-2.0.7] Fix undefined behavior within load_tile_var_sizes #1749
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The `load_tile_var_sizes` is not thread-safe between TBB tasks because it locks with an stdlib mutex. This change ensures that access to FragmentMetadata instances are serialized. Co-authored-by: Joe Maley <[email protected]>
Shelnutt2
approved these changes
Jul 28, 2020
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Backport 1e4e48b from #1748