This is the part of the updateviewcount fixes that is still missing in svn. It solves the case where PathPrefix is used. updateviewcount fails to count URLs that are shortened by PathPrefix, since they obviously can't be found in the node tables.
The pathprefix information is duplicated by this, you have to enter your pathprefixes in two places. It's like this because I can't reliably read the original pathprefix setting when it is set in another siteaccess than the current one. The only alternative I see is to recursively look for a node path string that matches each log entry not matching directly - horrible performance.