From 8d1fcedf50100c78a6bb95fe41d70d3d7b5faddf Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor@ccxvii.net>
Date: Fri, 22 Sep 2023 02:12:07 +0200
Subject: Don't try to change immutable 'options' object.

---
 rules.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/rules.js b/rules.js
index 4376f88..0fda774 100644
--- a/rules.js
+++ b/rules.js
@@ -9436,6 +9436,8 @@ function setup_1755(end_year) {
 }
 
 exports.setup = function (seed, scenario, options) {
+	options = object_copy(options)
+
 	load_game_state({
 		seed: seed,
 		options: options,
-- 
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