[GRASS-user] topological error

[Leonardo Lami]

Hi all,
I have a little topological error on a GRASS vector (that I linked to
the mail).
It is an example square vector with a topological error in the left top
angle.

I try to clean it with the various options of v.clean but without
results and v.digit doesn't show it with a different color when I edit
the vector.

How can remove this type of error?

Thank you very much!

Regards
Leonardo
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