inspircd/inspircd — pull request #48 by Shawn-Smith (2012-04-13 09:24:50+00:00)
Title: [2.1] Option to prevent snotices from stacking. (<options:nosnoticestack>)

This could probably be written to only call Flush() if we don't have this option enabled but it would require a bit more work. Personally I think this change is fine as-is since it's only doing one more check than before when an snotice is sent out, and that's the config check.