prevent panics with null objects in nested attrs #35121
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When descending into nested structural attributes, don't try to extract attributes from null objects. Unlike with blocks, nested attributes allow the possibility of assigning null values. While these technically aren't allowed to be altered, we need to accept these for compatibility.
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Reminder for the merging maintainer: if this is a user-visible change, please update the changelog on the appropriate release branch. |
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Manual backport of #35090
When descending into nested structural attributes, don't try to extract attributes from null objects. Unlike with blocks, nested attributes allow the possibility of assigning null values. While these technically aren't allowed to be altered, we need to accept these for compatibility.