DST Walter modmain.lua fix

AddComponentPostInit("crop", function(self)
    local old = self.Fertilize
    function self:Fertilize(fertilizer)
        local pt = self.inst:GetPosition()
        local ents = GLOBAL.TheSim:FindEntities(pt.x, pt.y, pt.z, 5, {"player", "greenthumb"}, {"playerghost"})
        if #ents > 0 then
            self.growthpercent = self.growthpercent + fertilizer.components.fertilizer.fertilizervalue * self.rate
            self.inst.AnimState:SetPercent("grow", self.growthpercent)
            if self.growthpercent >=1 then
                self.inst.AnimState:PlayAnimation("grow_pst")
                self:Mature()
                self.task:Cancel()
                self.task = nil
            end
            if (fertilizer.components.stackable ~= nil) then
                fertilizer.components.stackable:Get(1):Remove()
            end
            return true
        else
            return old(self, fertilizer)
        end
    end
end)