source-academy / py-slang / 38069512440

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e-stepper: a list keeps its home frame only while that frame holds it (#538)

* e-stepper: a list keeps its home frame only while that frame holds it

A pair first shown as an argument in E2 (stream_tail(s) in stream_ref) was
given E2 as its frame, though only E3 binds it, so the host never drew it.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

* e-stepper: work out the lists a frame holds once per snapshot

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

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Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>

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