From a4e06165b8c6ce933993bfe5c88124ad6e1f3be9 Mon Sep 17 00:00:00 2001
From: drfho <dr.frank.hoffmann@web.de>
Date: Mon, 17 Jul 2023 16:33:01 +0200
Subject: [PATCH] ignore missing values

---
 Products/zms/rest_api.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Products/zms/rest_api.py b/Products/zms/rest_api.py
index 0cc17aa60..64647e514 100644
--- a/Products/zms/rest_api.py
+++ b/Products/zms/rest_api.py
@@ -71,7 +71,7 @@ def __call__(self, REQUEST=None, **kw):
             if context.meta_type == 'ZMSIndex':
                 data = []
                 catalog = context.get_catalog()
-                q = {k:v for k,v in REQUEST.form.items()}
+                q = {k:v for k,v in REQUEST.form.items() if v is not ''}
                 l = catalog(REQUEST.form)
                 data = [{item_name:r[item_name] for item_name in catalog.schema()} for r in l]
             elif context.meta_type == 'ZMSMetamodelProvider':