Summon Reaper gets negative damage from Melee Physical Damage Support

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

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

What is the expected behaviour/value?

So i am playing a Summon Reaper build, i expect Melee Physical Damage Support to give the Reaper both the on hit and the bleed.

What is the actual behaviour/value?

but when i add the gem in POB, it looks like only the "10% Less attack Speed" gets calculated

When i take off the gem i can feel a BIG dmg change, so it must do something.

How to reproduce the issue

1. Summon Reaper - Set it to lvl 20 and 20% quality
2. Select the "Ultimate Slash" as an attack for the Reaper.
3. Under Configuration, Check "Is the enemy moving?" and "Is the enemy Bleeding?"
4. and now add Melee Physical Damage Support or the Awakened version.
   I gain dmg when i take the gem off, and i do believe that it is a bug in POB.

Character build code

https://pastebin.com/FtkjbBwL

Screenshots

Start by reproducing the issue with the linked Pastebin build, using the Reaper's Ultimate Slash attack and the stated enemy configuration. Compare damage with Melee Physical Damage Support enabled and disabled; done means the support gem's expected on-hit and bleed effects are represented without producing a damage decrease.