From 8c902dd8fc7298bac78150eb2c04e440cb8dca6b Mon Sep 17 00:00:00 2001
From: lampysprites <lampysprites@users.noreply.github.com>
Date: Mon, 18 Oct 2021 23:43:50 +0700
Subject: [PATCH] Avoid deadlock of ClosedDocs and SpriteObserver

---
 src/app/script/events_class.cpp | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/src/app/script/events_class.cpp b/src/app/script/events_class.cpp
index f1cd4778c..d4b1d4190 100644
--- a/src/app/script/events_class.cpp
+++ b/src/app/script/events_class.cpp
@@ -169,14 +169,6 @@ public:
     doc()->add_observer(this);
   }
 
-  ~SpriteEvents() {
-    if (m_observingUndo) {
-      doc()->undoHistory()->remove_observer(this);
-      m_observingUndo = false;
-    }
-    doc()->remove_observer(this);
-  }
-
   EventType eventType(const char* eventName) const {
     if (std::strcmp(eventName, "change") == 0)
       return Change;