Stop raving same data to config if no changes. detected

gui/lobby/LobbyPage/PlayerList~autociv.js

@@ -1,26 +1,42 @@
 PlayerList = new Proxy(PlayerList, {
-    construct: function (target, args)
-    {
-        const autociv_playersBox_preferences = new ConfigJSON("playersBox", true, false);
-        const playersBox = Engine.GetGUIObjectByName("playersBox");
+  construct: function (target, args) {
+    const autociv_playersBox_preferences = new ConfigJSON(
+      "playersBox",
+      true,
+      false
+    );
+    const playersBox = Engine.GetGUIObjectByName("playersBox");
 
-        for (let id of autociv_playersBox_preferences.getIds())
-            playersBox[id] = autociv_playersBox_preferences.getValue(id);
+    for (let id of autociv_playersBox_preferences.getIds())
+      playersBox[id] = autociv_playersBox_preferences.getValue(id);
 
-        let instance = new target(...args);
-        instance.autociv_playersBox_preferences = autociv_playersBox_preferences
-        return instance;
-    }
+    let instance = new target(...args);
+    instance.autociv_playersBox_preferences = autociv_playersBox_preferences;
+    warn("1");
+    return instance;
+  },
 });
 
-autociv_patchApplyN(PlayerList.prototype, "onPlayerListSelection", function (target, that, args)
-{
-    if (that.autociv_playersBox_preferences)
-    {
-        for (let id of ["selected_column", "selected_column_order"])
-            that.autociv_playersBox_preferences.setValue(id, that.playersBox[id])
-        that.autociv_playersBox_preferences.save()
+autociv_patchApplyN(
+  PlayerList.prototype,
+  "onPlayerListSelection",
+  function (target, that, args) {
+    if (that.autociv_playersBox_preferences) {
+      warn("2");
+      const needsSave = ["selected_column", "selected_column_order"]
+        .map((id) => {
+          let old = that.autociv_playersBox_preferences.getValue(id);
+          if (old == that.playersBox[id]) return false;
+          that.autociv_playersBox_preferences.setValue(id, that.playersBox[id]);
+          return true;
+        })
+        .some((v) => v);
+
+      if (needsSave) {
+        that.autociv_playersBox_preferences.save();
+      }
     }
 
     return target.apply(that, args);
-})
+  }
+);