IBox.Simulate() moves instead of simulating

[Pyroglyph]

For reference I'm using Humper 0.5.8 from Nuget.

I've been using Simulate() to test if an IBox is colliding with another, but I've just realized that calling Simulate() also moves the IBox.
To test, I switched all my Move() calls to Simulate() and there was no change in functionality.