From ce23468b016a5880a3bd86da6ce8284a80263ff4 Mon Sep 17 00:00:00 2001
From: Rainer Simon <rainer.simon@ait.ac.at>
Date: Sun, 12 Apr 2020 11:50:10 +0200
Subject: [PATCH] Minor fix to isEqual method

---
 src/WebAnnotation.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/WebAnnotation.js b/src/WebAnnotation.js
index 5f02fcd..fff3099 100644
--- a/src/WebAnnotation.js
+++ b/src/WebAnnotation.js
@@ -22,7 +22,7 @@ export default class WebAnnotation {
 
   /** An equality check based on the underlying object or (if given) ID **/
   isEqual(other) {
-    if (!other) {
+    if (!other || other?.type !== 'Annotation') {
       return false;
     } else if (this.underlying === other.underlying) {
       return true;