[MC-48402] new target selectors for cubic areas not working

I'm building a PvP map and I tried using a target selector to teleport everyone at the spawn to a room, and it didn't work.

Linked issues

it's dx, dy and dz and you can not use negative values for them

If you can't use negative values, doesn't that mean you can only use cubic areas in one-fourth of the world? Please change this. thx

@Calvin No, it means that your x,y,z must be the corner of the box with the lowest numbers.