ITA: VISIBLE_HIDDEN_COLOC error on E45Cat and A18Sir

[Jim]

Please see the comment at

https://github.com/TravelMapping/Web/issues/527

[michih]

No more VISIBLE_HIDDEN_COLOC in Italy: https://travelmapping.net/devel/datacheck.php?rg=ITA

Marking solved.

Edit: The problem is that the error is marked as FP. Reopening?

[si404]

The A18/E45 example looks like yet another legitimate VISIBLE_HIDDEN_COLOC case that we should be able to allow in the data and mark as FP.