From 6da10ca4ae8be46ac3419506397f14bd225fe602 Mon Sep 17 00:00:00 2001
From: Torsten Dittmann <torsten.dittmann@googlemail.com>
Date: Fri, 29 Oct 2021 17:50:59 +0200
Subject: [PATCH] fix(ui): cast empty strings to null

---
 public/scripts/services/form.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/public/scripts/services/form.js b/public/scripts/services/form.js
index c00f0ba5e5..809fd6c57d 100644
--- a/public/scripts/services/form.js
+++ b/public/scripts/services/form.js
@@ -24,6 +24,9 @@
                     break;
                 case 'string':
                     value = value.toString();
+                    if (value.length === 0) {
+                        value = null;
+                    }
                     break;
                 case 'json':
                     value = (value) ? JSON.parse(value) : [];
@@ -111,7 +114,7 @@
                             json[name] = element.value;
                         }
                     }
-                    
+
                     json[name] = cast(json[name], castTo); // Apply casting
                 }
             }