race condition when $$ used concurrently#816
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If the root variable reference `$$` is used in multiple concurrent invocations of a single compiled expression, then a race condition exists. This is because the `$$` binding is stored in the global expression environment rather than the evaluation environment.
mattbaileyuk
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Jul 15, 2026
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If the root variable reference
$$is used in multiple concurrent invocations of a single compiled expression, then a race condition exists. This is because the$$binding is stored in the global expression environment rather than the evaluation environment.Resolves #804