Octane render pass (OBJECT ID) in DOF is slightly thinner than Beauty pass's edges


Hello there,

I have really big problem and now comes the time to post first question about it… I have Beauty pass which is in small DOF… part of an image is blured and I need to mask some object in this scene and for this I use Render Pass Object ID (Object Tag is assigned on specific object)

But the problem is that the object ID pass has those blured edges slightly less blured or how to say that… Please see the gif attached here. I cannot to do proper compositing because it makes the composite image with edges not being masked out as it should be.