From 89fb9dd3e9720cb07d8365deb906a0e3654cce76 Mon Sep 17 00:00:00 2001
From: Thierry Bugier <tbugier@teclib.com>
Date: Thu, 23 Jan 2020 14:47:48 +0100
Subject: [PATCH] fix(selectfield): comparison with empty string

Signed-off-by: Thierry Bugier <tbugier@teclib.com>
---
 inc/fields/selectfield.class.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/inc/fields/selectfield.class.php b/inc/fields/selectfield.class.php
index 61240b5bc..abc9551eb 100644
--- a/inc/fields/selectfield.class.php
+++ b/inc/fields/selectfield.class.php
@@ -140,6 +140,10 @@ public function getEmptyParameters() {
    }
 
    public function equals($value) {
+      if ($value == '') {
+         // empty string means no selection
+         $value = '0';
+      }
       return $this->value == $value;
    }