The rules I have check for `contact:website` and only remove that in favor of `website` if the two match exactly. The whole principle of this import has been "first do no harm,"  and because I'm not going through every URL on every node, I'm not gonna remove URL tags just because they are potentially duplicative. In this case it looks like the URL was broken by the `#` symbol (not sure how that got there in the ATP data), which also broke the matching. I've checked and this was the only URL for 7-Eleven that has that issue.