Fixed groups and black sign drop item

signs/common.lua

@@ -165,8 +165,14 @@ function signs.register_sign(mod, name, model)
 
 	-- Node fields override
 	for key, value in pairs(model.node_fields) do
+		if key == "groups" then
+			for key2, value2 in pairs(value) do
+				fields[key][key2] = value2
+			end
+		else
 			fields[key] = value
 		end
+	end
 
 	if not fields.wield_image then fields.wield_image = fields.inventory_image end
 

signs/nodes.lua

@@ -118,7 +118,7 @@ local models = {
 				wall_side = {-0.5, -7/32, -0.5, -7/16, 7/32, 7/16},
 				wall_bottom = {-0.5, -0.5, -0.5, 0.5, -7/16, 0.5},
 				wall_top = {-0.5, 0.5, -0.5, 0.5, 7/16, 0.5}},
-			groups={choppy=1,oddly_breakable_by_hand=1,not_in_creative_inventory=1},
+			groups={not_in_creative_inventory=1},
 			drop="signs:wooden_right",
 		},
 	},

signs_road/nodes.lua

@@ -80,8 +80,8 @@ local models = {
 			description="Black direction sign",
 			tiles={"signs_black_left.png"},
 			inventory_image="signs_black_inventory.png",
-			groups={choppy=1,oddly_breakable_by_hand=1,not_in_creative_inventory=1},
-			drop="signs:black_right",
+			groups={not_in_creative_inventory=1},
+			drop="signs_road:black_right",
 			on_place=signs.on_place_direction,
 			on_rightclick=signs.on_right_click_direction,
 		},