If it was indeed a full rewrite via AI, committing it to the same repo, with the same project name, only an incremented major version and a license change -- seems to be an effort at co-opting the previous LGPL project's name and visibility by the current maintainer and serves to erase (however large or small) the work of previous contributors.

Even if it truly is a 'clean-room' re-implementation, it should be called 'chardet-ng' or something to distinguish it from the original.