merge fix for misc error (fix misc error on boat contidional)

* recommit 58c2cb6d89bf5bfc3da8818842d081d847d92ecd after upgrade boats
* sync merge with 5.2 stable brach from codeberg repo

mods/boats/init.lua

@@ -26,7 +26,7 @@ else
 end
 -- check for minetest 5.x compatibility
 is_50 = has_feature("httpfetch_binary_data")
-is_53 = minetest.has_feature("direct_velocity_on_players") or minetest.has_feature("is_creative_enabled") of false
+is_53 = minetest.has_feature("direct_velocity_on_players") or minetest.has_feature("is_creative_enabled") or false
 
 --
 -- Helper functions

mods/default/item_entity.lua

@@ -15,8 +15,8 @@ local item = {
 
 	burn_up = function(self)
 		-- disappear in a smoke puff
-		self.object:remove()
 		local p = self.object:get_pos()
+		self.object:remove()
 		minetest.sound_play("default_item_smoke", {
 			pos = p,
 			max_hear_distance = 8,
@@ -48,6 +48,10 @@ local item = {
 			if self.ignite_timer > 10 then
 				self.ignite_timer = 0
 
+				local pos = self.object:get_pos()
+				if pos == nil then
+					return -- object already deleted
+				end
 				local node = minetest.get_node_or_nil(self.object:get_pos())
 				if not node then
 					return