From 941077afba1a18aa376eadc2d0c8076145f50b8c Mon Sep 17 00:00:00 2001
From: Aidan Saunders <aidan.saunders@squiffle.uk>
Date: Wed, 15 Aug 2018 20:24:36 +0100
Subject: [PATCH] Don't lose keys with empty values when flattening array

---
 CRM/Utils/Array.php | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/CRM/Utils/Array.php b/CRM/Utils/Array.php
index 73b4dab45a..dbcb100e16 100644
--- a/CRM/Utils/Array.php
+++ b/CRM/Utils/Array.php
@@ -238,9 +238,7 @@ class CRM_Utils_Array {
         self::flatten($value, $flat, $newPrefix, $seperator);
       }
       else {
-        if (!empty($value)) {
-          $flat[$newPrefix] = $value;
-        }
+        $flat[$newPrefix] = $value;
       }
     }
   }
-- 
2.25.1