phpbb/phpbb3 — pull request #1264 by blitze (2013-03-03 06:49:26+00:00)
Title: [ticket/11383] Correctly revert modules added/removed by migrator

This should fix issues where migrator cannot remove module categories, for extensions that add a module category, as it started reverting from the module category instead of starting from the module mode and move upwards

PHPBB3-11383