lubosboucek: I should have been more attentive. A similar question has been posted a year ago. Notwithstanding, is not there a way except switching gender (sounds awful!) and avoiding this location?
Or, how have you solved this hindrance by yourself?
Switching gender is the most sure-fire way of dealing with it... you have to be careful and take only your male characters when you go to switch, otherwise you'll turn your women into men also. Having everyone be female is a great boon for a certain encounter in Portsmith. Remember that you can always go back and switch genders again later.
If you'd rather not switch genders, you can try to get around using the "jump" spell to skip over those squares, but since they are at crossroads you will need to step on them sometimes in order to turn. Later on, when you get the teleport spell, you can use that to get around without ever stepping on those squares.