From 246b1930f48fce91243ef1d19218f0d0c1062cd1 Mon Sep 17 00:00:00 2001
From: David Capello <david@igarastudio.com>
Date: Tue, 19 Oct 2021 11:56:36 -0300
Subject: [PATCH] Revert "Avoid deadlock of ClosedDocs and SpriteObserver"

This reverts commit 8c902dd8fc7298bac78150eb2c04e440cb8dca6b.
---
 src/app/script/events_class.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/app/script/events_class.cpp b/src/app/script/events_class.cpp
index d4b1d4190..f1cd4778c 100644
--- a/src/app/script/events_class.cpp
+++ b/src/app/script/events_class.cpp
@@ -169,6 +169,14 @@ 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;