From 6883a0b559c48304f6627996d1e3bf065feb7bfe Mon Sep 17 00:00:00 2001
From: Artur Arseniev <artur.catch@hotmail.it>
Date: Tue, 2 Mar 2021 01:54:39 +0100
Subject: [PATCH] Start and resume tracking of undo managers on switch

---
 src/undo_manager/index.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/undo_manager/index.js b/src/undo_manager/index.js
index f36323189..133a0f27b 100644
--- a/src/undo_manager/index.js
+++ b/src/undo_manager/index.js
@@ -153,8 +153,9 @@ export default () => {
       } else if (!inst && opts.create) {
         inst = this.addInst(id, this._createInst(config), opts);
       }
-
+      selected && selected.um.stopTracking();
       this.selected = inst;
+      inst && inst.um.startTracking();
       !opts.silent && this.em.trigger(evSelect, inst, selected);
       return inst;
     },