From 61bfac0fa201253fa1327f7eba1e81445bed5583 Mon Sep 17 00:00:00 2001
From: acmgit <undertakers_help@yahoo.com>
Date: Sun, 2 Jun 2019 19:50:20 +0200
Subject: [PATCH] Prevent potential crash caused by moss growth ABM

---
 mods/default/functions.lua | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mods/default/functions.lua b/mods/default/functions.lua
index e1e3e186..183b5597 100644
--- a/mods/default/functions.lua
+++ b/mods/default/functions.lua
@@ -560,7 +560,9 @@ minetest.register_abm({
 	catch_up = false,
 	action = function(pos, node)
 		node.name = moss_correspondences[node.name]
-		minetest.set_node(pos, node)
+		if node.name then
+			minetest.set_node(pos, node)
+		end
 	end
 })