mod - firefly - fix wrong check for object on place

* fix error `bad argument # 5 to 'register_item_raw' (table expected, got string)`
* backported codeberg commit 201cf5f for newer engines mostly 5.3

mods/creative/init.lua

@@ -49,7 +49,7 @@ local function update_sfinv(name)
 	end)
 end
 
-if is_50 then 
+if creative.is_50 then 
 	privs_definition = {
 		description = privs_description,
 		give_to_singleplayer = false,
@@ -186,7 +186,7 @@ function creative.update_creative_inventory(player_name, tab_content)
 	local lang = minetest.settings:get("language") or "en"
 	local player_info = minetest.get_player_information(player_name)
 
-	if is_53 then 
+	if creative.is_53 then 
 		if player_info and player_info.lang_code ~= "" then
 			lang = player_info.lang_code
 		end

mods/doors/init.lua

@@ -757,7 +757,7 @@ function doors.register_fencegate(name, def)
 	local fence_closed = table.copy(fence)
 	fence_closed.mesh = "doors_fencegate_closed.obj"
 	fence_closed.gate = name .. "_open"
-	fence_closed.sound = "doors_fencegate_open"
+	fence_closed.sound = (is_54 and {"doors_fencegate_close"} or "doors_fencegate_close")
 	fence_closed.collision_box = {
 		type = "fixed",
 		fixed = {-1/2, -1/2, -1/4, 1/2, 1/2, 1/4},
@@ -766,7 +766,7 @@ function doors.register_fencegate(name, def)
 	local fence_open = table.copy(fence)
 	fence_open.mesh = "doors_fencegate_open.obj"
 	fence_open.gate = name .. "_closed"
-	fence_open.sound = "doors_fencegate_close"
+	fence_open.sound = (is_54 and {"doors_fencegate_open"} or "doors_fencegate_open")
 	fence_open.groups.not_in_creative_inventory = 1
 	fence_open.collision_box = {
 		type = "fixed",

mods/fireflies/init.lua

@@ -45,6 +45,7 @@ minetest.register_tool("fireflies:bug_net", {
 	description = "Bug Net",
 	inventory_image = "fireflies_bugnet.png",
 	on_use = function(itemstack, player, pointed_thing)
+		if not player then return itemstack end
 		if not pointed_thing or pointed_thing.type ~= "node" or
 				minetest.is_protected(pointed_thing.under, player:get_player_name()) then
 			return
@@ -104,6 +105,8 @@ minetest.register_node("fireflies:firefly_bottle", {
 	},
 	sounds = default.node_sound_glass_defaults(),
 	on_rightclick = function(pos, node, player, itemstack, pointed_thing)
+		if not player then return itemstack end
+
 		local lower_pos = {x = pos.x, y = pos.y + 1, z = pos.z}
 		if minetest.is_protected(pos, player:get_player_name()) or
 				minetest.get_node(lower_pos).name ~= "air" then