syncOriginal on refresh (#21905)

src/Illuminate/Database/Eloquent/Model.php

@@ -1006,6 +1006,8 @@ public function refresh()
 
         $this->load(collect($this->relations)->except('pivot')->keys()->toArray());
 
+        $this->syncOriginal();
+
         return $this;
     }
 

tests/Integration/Database/EloquentModelRefreshTest.php

@@ -63,6 +63,22 @@ public function it_refreshes_a_soft_deleted_model()
 
         $this->assertTrue($post->trashed());
     }
+
+    /**
+     * @test
+     */
+    public function it_syncs_original_on_refresh()
+    {
+        $post = Post::create(['title' => 'pat']);
+
+        Post::find($post->id)->update(['title' => 'patrick']);
+
+        $post->refresh();
+
+        $this->assertEmpty($post->getDirty());
+
+        $this->assertEquals('patrick', $post->getOriginal('title'));
+    }
 }
 
 class Post extends Model