Version mkgmap-r4260 was committed by gerd on Fri, 28 Dec 2018 prevent IndexOutOfBoundsException for special case where wrong house number intervals cause a road to be split into > 0x3ff segements. There is a limit in the NET file, a road must not have more than 0x3ff + 2 so called number nodes. http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4260