Negative damage and duration

Check version

• I'm running the latest version of Path of Building and I've verified this by checking the changelog

Check for duplicates

• I've checked for duplicate issues by using the search function of the issue tracker

What is the expected behaviour/value?

You can't deal negative damage or duration so expected to see zero here.

The only notable stat is projectile speed which I think is capped at 1%.

What is the actual behaviour/value?

Some stats can become negative when they shouldn't e.g. damage or duration, regen, etc.

How to reproduce the issue

Add alt quality defiance banner and ashes of the star and observe negative duration in panel.
Add enfeeble with 500% curse effect and see negative damage on player.

This likely effect a bunch of other multipliers and should likely apply to all reduced and less multipliers capped to x 0. Except maybe some special cases.

Character build code

https://poe.ninja/pob/EgI

Screenshots

No response

Start by reproducing the issue with the provided PoE Ninja build code: add alternate-quality Defiance Banner and Ashes of the Stars, then try Enfeeble with 500% curse effect. Trace the stat calculations that produce negative duration, damage, regeneration, and other reduced or less multipliers. Done means invalid negative values are prevented while legitimate special cases remain correct.