From cca8e36ef05a9ff0584bae8c68182888929ab67c Mon Sep 17 00:00:00 2001
From: samreid <reids@colorado.edu>
Date: Thu, 1 Nov 2018 22:52:26 -0600
Subject: [PATCH] hard-code phetioType in NumberProperty, see
 https://github.com/phetsims/axon/issues/116

---
 js/NumberProperty.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/js/NumberProperty.js b/js/NumberProperty.js
index b5942159..3510fdb7 100644
--- a/js/NumberProperty.js
+++ b/js/NumberProperty.js
@@ -30,13 +30,15 @@ define( function( require ) {
       numberType: 'FloatingPoint', // {string} see VALID_VALUE_TYPES
 
       // {Range|null} range
-      range: null,
-      phetioType: NumberPropertyIO
+      range: null
     }, options );
 
     assert && assert( _.includes( VALID_NUMBER_TYPES, options.numberType ), 'invalid numberType: ' + options.numberType );
     options.range && assert && assert( options.range instanceof Range, 'options.range must be of type Range:' + options.range );
 
+    assert && assert( !options.hasOwnProperty( 'phetioType' ), 'phetioType is set by NumberProperty' );
+    options.phetioType = NumberPropertyIO;
+
     // @public (read-only) - used by PhET-iO in NumberPropertyIO as metadata passed to the wrapper.
     this.numberType = options.numberType;
     this.range = options.range;