Pugalisk cannot heal itself for 1 health per 2 seconds due to redirect

Due to inst.components.health.redirect, Pugalisk cannot heal itself.

The following are related code:

local function redirecthealth(inst, amount, overtime, cause, ignore_invincible)

    local originalinst = inst

    if inst.startpt then
        inst = inst.startpt
    end

    if amount < 0 and( (inst.components.segmented and inst.components.segmented.vulnerablesegments == 0) or inst:HasTag("tail") or inst:HasTag("head") ) then
        print("invulnerable",cause,GetPlayer().prefab)
        if cause == GetPlayer().prefab then
            GetPlayer().components.talker:Say(GetString(GetPlayer().prefab, "ANNOUNCE_PUGALISK_INVULNERABLE"))        
        end
        inst.SoundEmitter:PlaySound("dontstarve/common/destroy_metal",nil,.25)
        inst.SoundEmitter:PlaySound("dontstarve/wilson/hit_metal")

    elseif amount and inst.host then

        local fx = SpawnPrefab("snake_scales_fx")
        fx.Transform:SetScale(1.5,1.5,1.5)
        local pt= Vector3(originalinst.Transform:GetWorldPosition())
        fx.Transform:SetPosition(pt.x,pt.y + 2 + math.random()*2,pt.z)

        inst:PushEvent("dohitanim")
        inst.host.components.health:DoDelta(amount, overtime, cause, ignore_invincible, true)
        inst.host:PushEvent("attacked")
    end    
end

I suggest adding the following code above the if amount < 0...   :

if amount > 0 and cause == "regen" then
    inst.components.health:DoDelta(amount, overtime, cause, ignore_invincible, true)
end