From 56208ed86eddc5d85d8f6c00835642fd5bfba8d1 Mon Sep 17 00:00:00 2001
From: brandonkelly <brandon@pixelandtonic.com>
Date: Tue, 22 May 2018 13:36:06 -0700
Subject: [PATCH] Fixed #2913

---
 CHANGELOG-v3.md       | 5 +++++
 src/fields/Number.php | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG-v3.md b/CHANGELOG-v3.md
index 0c1ea6b33a0..33157981ffb 100644
--- a/CHANGELOG-v3.md
+++ b/CHANGELOG-v3.md
@@ -1,5 +1,10 @@
 # Release Notes for Craft CMS 3.x
 
+## Unreleased
+
+### Fixed
+- Fixed a PHP error that could occur when `craft\fields\Number::normalizeValue()` was called without passing an `$element` argument. ([#2913](https://github.com/craftcms/cms/issues/2913))
+
 ## 3.0.9 - 2018-05-22
 
 ### Added
diff --git a/src/fields/Number.php b/src/fields/Number.php
index dee4a7dd9d4..16b8c323b9f 100644
--- a/src/fields/Number.php
+++ b/src/fields/Number.php
@@ -149,7 +149,7 @@ public function normalizeValue($value, ElementInterface $element = null)
             $value = Localization::normalizeNumber($value['value'], $value['locale']);
         }
 
-        return $this->isValueEmpty($value, $element) ? null : $value;
+        return $value === '' ? null : $value;
     }
 
     /**