Yes, but unit will still go around em, cause it's movement type is to foot example and Wc3 machine will think he can't pass trees, so it will order unit go around. But you can go through em with that unit if you order moving by right-clicking inside trees.
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.