The Bug: Mauga can charge-run while in empty space, allowing him to move in a straight line without falling.
Look at this video:
In the video we can clearly see Mauga starts charging after he fell in empty space.
Because he is unstoppable while charging it looks like he is moving the same way Sojourn does that allows him to slide on empty space and get back up on the ground.
I do not think this is an intended mechanic.