From bd35474b928642af3fa3be434928709fd6e9e844 Mon Sep 17 00:00:00 2001
From: Erez Rokah <erezrokah@users.noreply.github.com>
Date: Mon, 13 Sep 2021 14:57:01 +0200
Subject: [PATCH] fix(widget-relation): don't invoke onChange if component is
 not mounted (#5804)

---
 .../src/RelationControl.js                            | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/packages/netlify-cms-widget-relation/src/RelationControl.js b/packages/netlify-cms-widget-relation/src/RelationControl.js
index a2e07f692746..29bd5f40d0d4 100644
--- a/packages/netlify-cms-widget-relation/src/RelationControl.js
+++ b/packages/netlify-cms-widget-relation/src/RelationControl.js
@@ -151,11 +151,12 @@ export default class RelationControl extends React.Component {
       this.mounted && this.setState({ initialOptions });
 
       //set metadata
-      onChange(value, {
-        [field.get('name')]: {
-          [field.get('collection')]: metadata,
-        },
-      });
+      this.mounted &&
+        onChange(value, {
+          [field.get('name')]: {
+            [field.get('collection')]: metadata,
+          },
+        });
     }
   }