On the page that states how Line of Sight works, the rules state that LOS can only be drawn across a blocked corner if it is drawn at exactly a 45 degree angle (and the other side of the corner is not blocked).

The explanation goes on to show a lot of examples of different LOS situations- and states very clearly that characters can see one another as long as the LOS only touches the corner.

There's clearly a typo here- do we have any ruling on how this is supposed to work? Are we really only able to draw LOS across a corner at a 45 degree angle, or can we draw LOS so long as the line is drawn to only touch the very corner?