From dde8c674b81835e6d7a6591bd0732a9c5c140be0 Mon Sep 17 00:00:00 2001
From: MihailRis <mexaruc@gmail.com>
Date: Sun, 5 Apr 2026 20:52:47 +0300
Subject: [PATCH] fix process_properties

---
 res/scripts/post_content.lua | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/res/scripts/post_content.lua b/res/scripts/post_content.lua
index 92eff79ce..d6d48fbd1 100644
--- a/res/scripts/post_content.lua
+++ b/res/scripts/post_content.lua
@@ -17,7 +17,8 @@ end
 local function process_properties(lib)
     for id, props in pairs(lib.properties) do
         if props.parent then
-            for propname, value in pairs(lib.properties[block.index(props.parent)]) do
+            local parent_props = lib.properties[block.index(props.parent)] or {}
+            for propname, value in pairs(parent_props) do
                 if not props[propname] then
                     props[propname] = value
                 end