From 10ff0c08c61af4df7a0e24b27731b6a21a0215e6 Mon Sep 17 00:00:00 2001
From: Dmitry Mazurov <dimabzz@gmail.com>
Date: Thu, 23 Sep 2021 19:17:44 +0300
Subject: [PATCH] Added search by group label

---
 src/multiselectMixin.js | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/multiselectMixin.js b/src/multiselectMixin.js
index 24c00ce2..ad50ebbf 100644
--- a/src/multiselectMixin.js
+++ b/src/multiselectMixin.js
@@ -49,13 +49,21 @@ function filterGroups (search, label, values, groupLabel, customLabel) {
         return []
       }
       const groupOptions = filterOptions(group[values], search, label, customLabel)
+      const groupSearch = includes(group[groupLabel], search)
+      
+      if (!groupOptions.length && !groupSearch) {
+        return []
+      } else if (!groupOptions.length && groupSearch) {
+        return {
+          [groupLabel]: group[groupLabel],
+          [values]: group[values]
+        }
+      }
 
-      return groupOptions.length
-        ? {
+      return {
           [groupLabel]: group[groupLabel],
           [values]: groupOptions
-        }
-        : []
+      }
     })
 }