From 9c0c16c71b0fd9ef82b86f7fbf0f9d297820436a Mon Sep 17 00:00:00 2001
From: jiten-github <jitendra.kumawat@guavus.com>
Date: Mon, 24 Jun 2019 02:52:07 +0530
Subject: [PATCH] fix(filterbox): fixed  runtime exception in filterbox for
 allow multiple selection is false (#7011)

---
 superset/utils/core.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/superset/utils/core.py b/superset/utils/core.py
index c2ad7a7d76..d7a95ecf63 100644
--- a/superset/utils/core.py
+++ b/superset/utils/core.py
@@ -840,7 +840,7 @@ def merge_extra_filters(form_data: dict):
             if date_options.get(filtr['col']):
                 if filtr.get('val'):
                     form_data[date_options[filtr['col']]] = filtr['val']
-            elif filtr['val'] and len(filtr['val']):
+            elif filtr['val']:
                 # Merge column filters
                 filter_key = get_filter_key(filtr)
                 if filter_key in existing_filters: