I have prepared a patch to fix this in Ubuntu, because we already build php8.4 with the new libxml2 there. It's part of: https://code.launchpad.net/~rr/ubuntu/+source/symfony/+git/symfony/+merge/490278 I have raised an issue and sent the patch upstream: https://github.com/symfony/symfony/pull/61347
Please tell me if it is fine from the Debian side to pick this up upstream (if not merged until Debian does the libxml transition) or if I should send it myself somehow (salsa MR, patch here?)
