From 6a5a21b4e1aa5ea11fba98cc922c700208e927ad Mon Sep 17 00:00:00 2001
From: besserwisser <oweiss@outlook.de>
Date: Wed, 19 Jan 2022 12:02:45 +0100
Subject: [PATCH] Fix undefined access on checkbox group

Trying to access the checkbox group with having one results in an error. The undefined check prevents the error.
---
 packages/checkbox/src/checkbox.vue | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/checkbox/src/checkbox.vue b/packages/checkbox/src/checkbox.vue
index 00df69e99..08cd31c43 100644
--- a/packages/checkbox/src/checkbox.vue
+++ b/packages/checkbox/src/checkbox.vue
@@ -137,6 +137,7 @@
 
       /* used to make the isDisabled judgment under max/min props */
       isLimitDisabled() {
+        if (!this._checkboxGroup) return true;
         const { max, min } = this._checkboxGroup;
         return !!(max || min) &&
           (this.model.length >= max && !this.isChecked) ||