From fcd8ed984cd701195f77177a7184cd135ea44786 Mon Sep 17 00:00:00 2001
From: Raymond Feng <raymond@strongloop.com>
Date: Thu, 21 Aug 2014 13:47:09 -0700
Subject: [PATCH] Make sure falsy value is kept for properties not predefined

---
 lib/model.js             | 3 ++-
 test/loopback-dl.test.js | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/model.js b/lib/model.js
index ee51fa26..069d39c1 100644
--- a/lib/model.js
+++ b/lib/model.js
@@ -151,7 +151,8 @@ ModelBaseClass.prototype._initProperties = function (data, options) {
     } else {
       // Un-managed property
       if (strict === false || self.__cachedRelations[p]) {
-        self[p] = self.__data[p] = propVal || self.__cachedRelations[p];
+        self[p] = self.__data[p] =
+          (propVal !== undefined) ? propVal : self.__cachedRelations[p];
       } else if (strict === 'throw') {
         throw new Error('Unknown property: ' + p);
       }
diff --git a/test/loopback-dl.test.js b/test/loopback-dl.test.js
index 9d2d42d2..972d7aab 100644
--- a/test/loopback-dl.test.js
+++ b/test/loopback-dl.test.js
@@ -28,12 +28,13 @@ describe('ModelBuilder define model', function () {
     modelBuilder.models.should.be.a('object').and.have.property('User', User);
     modelBuilder.definitions.should.be.a('object').and.have.property('User');
 
-    var user = new User({name: 'Joe', age: 20});
+    var user = new User({name: 'Joe', age: 20, xyz: false});
 
     User.modelName.should.equal('User');
     user.should.be.a('object').and.have.property('name', 'Joe');
     user.should.have.property('name', 'Joe');
     user.should.have.property('age', 20);
+    user.should.have.property('xyz', false);
     user.should.not.have.property('bio');
     done(null, User);
   });