[GRASSLIST:6182] pb with topology of adjacent areas

[betored]

dear Grass users,

We have some trouble with topology on vector files imported from ARC/INFO 
polygones with v.in.arc (.ply, .pnt and .txt files).

It seems that for some adjacent areas,  one of these areas (A) is "included" 
in the other (B). Consequently, the surface of A (SA) is correct but the 
surface of B is underestimated ( = SB -SA).

We suspect that it is related to the fact that the first node of  A is one one 
the B nodes.


Thanks.

Didier