module_implements works differently for php 7 and php 8

There doesn't seem to be a data loss demonstrated, so this is probably major priority.

I think this needs much more explanation and steps to reproduce.

I would say this is more or less a duplicate of 🐛 Hooks in includes files are not included with .module with php8.1 in drupal 7.98 Postponed: needs info , so let's keep only one issue open. Thanks!