Weakness Potion Cancels Unarmed Damage – MCMMO Bonus Ignored

[Dareo]

When a player under the effect of Weakness uses unarmed attacks, all damage is negated — even if their Unarmed skill adds bonus damage.

This occurs because:
Vanilla Minecraft calculates if the base melee damage (1.0 for unarmed) is greater than Weakness reduction.
If not, no damage or hit is applied.
MCMMO’s bonus unarmed damage is applied after vanilla's check, so it is bypassed entirely.
The result is that MCMMO bonus damage is ignored if Weakness causes vanilla damage to drop to 0.

Steps to Reproduce:
Apply Weakness I or higher.
Try to attack mobs.

Observe:
No damage dealt
No hit feedback or knockback
MCMMO bonus damage never applies

Expected:
MCMMO should override or hook into the damage calculation, so its bonus unarmed damage still applies.

Actual:
Vanilla Weakness prevents damage from being registered at all, so MCMMO can’t apply anything.

[nossr50]

This is actually a difficult bug to solve because the Minecraft client will stop sending packets to the server for things it sees as needless, such as "damaging" stuff when you've been hit by weakness and you are unarmed. A workaround for this is to use items as unarmed (enabled in config), and hold an item in order to deal unarmed damage.

It's been a while since I looked at this bug and it's possible Minecraft behavior as changed, so it should be reinvestigated to see if another solution is possible, or if I overlooked anything.