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`Node::drop` no longer clobbers nodes that have active external handles
Lucretiel
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CI failure is some kind of job cancellation. |
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Ah, no need to worry about the SemVer check. That isn't working yet and doesn't block merging. |
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- Prevent root node from recursively dropping its template - Use simpler `list.extend(opt)`
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Node::dropno longer clobbers child nodes that have active external handles. It still takes care to drop iteratively rather than recursively, to avoid an unbounded stack growth. As an added benefit, may be marginally more performant, as it now can avoidborrow_muton theRefCell.Additionally add a regression test for this behavior.
Fixes #410