From 9acc84ff8eff303d18a2d7c14a33ae91772f2479 Mon Sep 17 00:00:00 2001
From: Yair Morgenstern <yairm210@hotmail.com>
Date: Sat, 25 Feb 2023 22:23:23 +0200
Subject: [PATCH] Resolved #8739 - cannot 'undo' if you cannot change state

---
 .../unciv/ui/screens/worldscreen/TechPolicyDiplomacyButtons.kt  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/com/unciv/ui/screens/worldscreen/TechPolicyDiplomacyButtons.kt b/core/src/com/unciv/ui/screens/worldscreen/TechPolicyDiplomacyButtons.kt
index f6f39b8f11..b02bbf452d 100644
--- a/core/src/com/unciv/ui/screens/worldscreen/TechPolicyDiplomacyButtons.kt
+++ b/core/src/com/unciv/ui/screens/worldscreen/TechPolicyDiplomacyButtons.kt
@@ -119,7 +119,7 @@ class TechPolicyDiplomacyButtons(val worldScreen: WorldScreen) : Table(BaseScree
 
     private fun updateUndoButton() {
         // Don't show the undo button if there is no action to undo
-        if (worldScreen.gameInfo != worldScreen.preActionGameInfo) {
+        if (worldScreen.gameInfo != worldScreen.preActionGameInfo && worldScreen.canChangeState) {
             undoButtonHolder.touchable = Touchable.enabled
             undoButtonHolder.actor = undoButton
         } else {