From e0295270e0c490146cde2d161eeb2d8ae6a7adcf Mon Sep 17 00:00:00 2001
From: Artur Arseniev <artur.catch@hotmail.it>
Date: Sat, 14 Nov 2020 14:44:16 +0100
Subject: [PATCH] Add destroy method to Commands module

---
 src/commands/index.js      | 4 ++++
 src/editor/model/Editor.js | 4 +++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/commands/index.js b/src/commands/index.js
index 2e2561816..6790a0c08 100644
--- a/src/commands/index.js
+++ b/src/commands/index.js
@@ -424,6 +424,10 @@ export default () => {
       if (!command.stop) command.noStop = 1;
       const cmd = CommandAbstract.extend(command);
       return new cmd(c);
+    },
+
+    destroy() {
+      [em, c, commands, defaultCommands, active].forEach(i => (i = {}));
     }
   };
 };
diff --git a/src/editor/model/Editor.js b/src/editor/model/Editor.js
index 1267f6af1..e984c6c90 100644
--- a/src/editor/model/Editor.js
+++ b/src/editor/model/Editor.js
@@ -761,7 +761,8 @@ export default Backbone.Model.extend({
       LayerManager,
       AssetManager,
       BlockManager,
-      CodeManager
+      CodeManager,
+      Commands
     } = this.attributes;
     this.stopDefault();
     DomComponents.clear();
@@ -775,6 +776,7 @@ export default Backbone.Model.extend({
     AssetManager.destroy();
     BlockManager.destroy();
     CodeManager.destroy();
+    Commands.destroy();
     this.view.remove();
     this.stopListening();
     this.clear({ silent: true });