[SOLVED] Disabling constructor in Prophecy

I have a Symfony class I am trying to mock using Prophecy. However, when I reveal the class it executes the constructor. Below is example code:

$mock = $this->prophesize('Symfony\Component\HttpFoundation\File\UploadedFile');
$mock->reveal();

which returns the exception

Symfony\Component\HttpFoundation\File\Exception\FileNotFoundException

which doesn't make sense to me as Prophecy is supposed to automatically disable the constructor?

I had the same problem and had to mock without prophecy:

$uploadedFile = $this->getMockBuilder(UploadedFile::class)->disableOriginalC‌onstructor()->getMoc‌k();