From a129aaf4ee915d1dbc61c4ecd319defc326a394c Mon Sep 17 00:00:00 2001
From: Oleg Agafonov <jaydi85@gmail.com>
Date: Sun, 5 Sep 2021 14:43:21 +0400
Subject: [PATCH] Dungeons: fixed rollback error on disconnects while choosing
 dungeon;

---
 Mage/src/main/java/mage/game/command/Dungeon.java | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Mage/src/main/java/mage/game/command/Dungeon.java b/Mage/src/main/java/mage/game/command/Dungeon.java
index 7b0841f9220..0170c47b762 100644
--- a/Mage/src/main/java/mage/game/command/Dungeon.java
+++ b/Mage/src/main/java/mage/game/command/Dungeon.java
@@ -148,7 +148,12 @@ public class Dungeon implements CommandObject {
         choice.setMessage("Choose a dungeon to venture into");
         choice.setChoices(dungeonNames);
         player.choose(Outcome.Neutral, choice, game);
-        return createDungeon(choice.getChoice());
+        if (choice.getChoice() != null) {
+            return createDungeon(choice.getChoice());
+        } else {
+            // on disconnect
+            return createDungeon("Tomb of Annihilation");
+        }
     }
 
     public static Dungeon createDungeon(String name) {