[GIT-PULLS] [php-src] PR #23358: ext/dom: DOMDocument::adoptNode() stale document references in the ad…

[email protected] (devnexen)
Newsgroups php.git-pulls
Message-ID <[email protected]> 
Pull Request: https://github.com/php/php-src/pull/23358
Author: devnexen

…opted subtree.

Fix #23352

php_dom_transfer_document_ref() only retargeted the leftmost descendant chain, and never an attribute's value nodes, leaving retained nodes pointing at the freed source document. Replaced with an iterative walk over the whole subtree.
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