2025-05-13 - production
10:26	<jnuche@deploy1003>	matmarex, jnuche: Backport for [[gerrit:1144715|Update for Parsoid's rename of XMLSerializer to XHtmlSerializer (T393983)]] synced to the testservers (https://wikitech.wikimedia.org/wiki/Mwdebug)	[production]