Can you tell me which key that is for future reference. If they revert the behavior I'll still want to enable it for myself and just keep on keeping on without making a fuss that the default doesn't fit my preferred workflow.
And while your at it. If you know which key I can use to change the primary desktop from the right-most to the left-most that would be great. I'd actually prefer to have a left most primary monitor and have the pinned monitor on the right. I guess I'd could shake my fist a bit and get all hyperbolic about that bit of default workflow mismatch.