[mkgmap-dev] Commit r4374: Correct calculation of special nodes

Version mkgmap-r4374 was committed by gerd on Mon, 25 Nov 2019 Correct calculation of special nodes We have to make sure that island detection is done before we calculate the flags for special nodes, else values may be wrong, so call RoadNetwork.getCenters() which does the island detection before writing RGN data. Unfortunately this doesn't fix routing errors in Basecamp seen with the --check-routing-island-len=INTEGER option. http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4374