Fix to on_rightclick not able to change wielded_item

builtin/item.lua

@@ -237,8 +237,7 @@ function minetest.item_place(itemstack, placer, pointed_thing)
 		local n = minetest.env:get_node(pointed_thing.under)
 		local nn = n.name
 		if minetest.registered_nodes[nn] and minetest.registered_nodes[nn].on_rightclick then
-			minetest.registered_nodes[nn].on_rightclick(pointed_thing.under, n, placer)
-			return
+			return minetest.registered_nodes[nn].on_rightclick(pointed_thing.under, n, placer, itemstack)
 		end
 	end
 

doc/lua_api.txt

@@ -1497,8 +1497,10 @@ Node definition (register_node)
     on_punch = func(pos, node, puncher),
     ^ default: minetest.node_punch
     ^ By default: does nothing
-    on_rightclick = func(pos, node, clicker),
+    on_rightclick = func(pos, node, clicker, itemstack),
     ^ default: nil
+    ^ if defined, itemstack will hold clicker's wielded item
+      Shall return the leftover itemstack
     on_dig = func(pos, node, digger),
     ^ default: minetest.node_dig
     ^ By default: checks privileges, wears out tool and removes node