From 57595d91a56e486c6509c94f61714a82acf85414 Mon Sep 17 00:00:00 2001
From: Artur Arseniev <artur.catch@hotmail.it>
Date: Sat, 11 Jan 2020 19:47:32 +0100
Subject: [PATCH] Don't accept empty value as a valid one in SM

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

diff --git a/src/style_manager/model/Property.js b/src/style_manager/model/Property.js
index cdf6624cb..daa8e4944 100644
--- a/src/style_manager/model/Property.js
+++ b/src/style_manager/model/Property.js
@@ -162,7 +162,7 @@ const Property = Backbone.Model.extend(
     getFullValue(val) {
       const fn = this.get('functionName');
       let value = isUndefined(val) ? this.get('value') : val;
-      const hasValue = !isUndefined(value);
+      const hasValue = !isUndefined(value) && value !== '';
 
       if (fn && hasValue) {
         value = `${fn}(${value})`;