Workaround for libxml double-free in PHP 8.1.21 #45
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There is a quirky behaviour of the libxml integration in PHP 8.1.21 that results in "DOMException: Not Found Error" or in some cases a SEGFAULT when nodes are appended to the DOM adjacent to nodes that are being / have been removed from the DOM.
While we wait for our infrastructure (and especially mwcli (T388411)) to move away from the version that has the bug, add a workaround so that we can make progress with MEX development.
Bug: T398821