Fix wool farm crash

mods/ENTITIES/mobs_mc/sheep.lua

@@ -6,6 +6,8 @@ local S = minetest.get_translator("mobs_mc")
 --################### SHEEP
 --###################
 
+local WOOL_REPLACE_RATE = 80
+
 local colors = {
 	-- group = { wool, textures }
 	unicolor_white = { "mcl_wool:white", "#FFFFFF00" },
@@ -113,7 +115,7 @@ mcl_mobs.register_mob("mobs_mc:sheep", {
 	view_range = 12,
 
 	-- Eat grass
-	replace_rate = 80,
+	replace_rate = WOOL_REPLACE_RATE,
 	replace_delay = 1.3,
 	replace_what = {
 		{ "mcl_core:dirt_with_grass", "mcl_core:dirt", -1 },
@@ -121,25 +123,42 @@ mcl_mobs.register_mob("mobs_mc:sheep", {
 	},
 	-- Properly regrow wool after eating grass
 	on_replace = function(self, pos, oldnode, newnode)
-		self.state = "eat"
-		self:set_animation("eat")
-		self:set_velocity(0)
-		minetest.after(self.replace_delay, function()
-			if self and self.object and self.object:get_velocity() and self.health > 0 then
-				self.object:set_velocity(vector.zero())
 		if not self.color or not colors[self.color] then
 			self.color = "unicolor_white"
 		end
-				self.gotten = false
 		self.base_texture = sheep_texture(self.color)
+
+		self.drops = {
+			{name = "mcl_mobitems:mutton",
+			 chance = 1,
+			 min = 1,
+			 max = 2,},
+			{name = colors[self.color][1],
+			 chance = 1,
+			 min = 1,
+			 max = 1,},
+		}
+
+		self.state = "eat"
+		self:set_animation("eat")
+		self:set_velocity(0)
+
+
+
+		minetest.after(self.replace_delay, function()
+			if self and self.object and self.object:get_velocity() and self.health > 0 then
+				self.object:set_velocity(vector.zero())
+				self.gotten = false
 				self.object:set_properties({ textures = self.base_texture })
 			end
 		end)
+
 		minetest.after(2.5, function()
-			if self and self.object and self.state == 'eat' and self.health > 0 and self.object:get_velocity()  then
+			if self and self.object and self.state == 'eat' and self.health > 0 then
 				self.state = "walk"
 			end
 		end)
+
 	end,
 
 	-- Set random color on spawn

mods/ITEMS/REDSTONE/mcl_dispensers/init.lua

@@ -178,7 +178,9 @@ local dispenserdef = {
 								local pos = obj:get_pos()
 								local used, texture = false
 								if entname == "mobs_mc:sheep" then
+									if entity.drops[2] then
 										minetest.add_item(pos, entity.drops[2].name .. " " .. math.random(1, 3))
+									end
 									if not entity.color then
 										entity.color = "unicolor_white"
 									end

mods/ITEMS/REDSTONE/mesecons/internal.lua

@@ -177,7 +177,7 @@ end
 
 function mesecon.effector_get_rules(node)
 	local effector = mesecon.get_effector(node.name)
-	if effector then
+	if effector and effector.rules then
 		local rules = effector.rules
 		if type(rules) == "function" then
 			return rules(node)