Hi,
I just released MediaWiki-Codesniffer 0.7.2, which is a bugfix release for 0.7.1. There was an issue[1] in the SpacyParenthesisSniff that would sometimes eat the content inside of the parenthesis or brackets. I ran a script to check and the only extension that was affected and had bad code committed was ArticlePlaceholder, which has already been fixed. Thanks to Thiemo and Nikerabbit for reporting, and PleaseStand for the patch. Additionally, EBernhardson overhauled how our tests run so we now have the ability to test sniffs that automatically fix code, which will hopefully prevent regressions like this in the future!
I submitted autogenerated patches to upgrade all extensions that were already at 0.7.1 to upgrade to 0.7.2 - they should only touch composer.json.
[1] https://phabricator.wikimedia.org/T134857
-- Legoktm