From fada49768dcd12faae4f7a188bdd36ea60f8b0a8 Mon Sep 17 00:00:00 2001
From: Henry Jameson <me@hjkos.com>
Date: Mon, 8 Mar 2021 21:14:03 +0200
Subject: [PATCH] extra protection to not write what we don't know

---
 src/modules/config.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/modules/config.js b/src/modules/config.js
index ec3b4c43..352adf20 100644
--- a/src/modules/config.js
+++ b/src/modules/config.js
@@ -111,7 +111,16 @@ const config = {
   },
   actions: {
     loadSettings ({ dispatch }, data) {
-      Object.keys(this.state.config).forEach(
+      const knownKeys = new Set(Object.keys(this.state.config))
+      const presentKeys = new Set(Object.keys(data))
+      const intersection = new Set()
+      for (let elem of presentKeys) {
+        if (knownKeys.has(elem)) {
+          intersection.add(elem)
+        }
+      }
+
+      Object.keys(intersection).forEach(
         name => dispatch('setOption', { name, value: data[name] })
       )
     },