[LRUG] PSA: memory leak in Ruby 3.0.2

[Frederick Cheung]

Hopefully saving someone else’s afternoon… 3.0.2 introduced a memory leak in Hash#transform_keys! ( https://bugs.ruby-lang.org/issues/18065 ). 

This gets used all over the place in rails (symbolize_keys! uses it for example) so hard to avoid tripping over this in a rails app if you are on 3.0.2

Fred
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