Ticket #6510: 6510.patch

src/org/openstreetmap/josm/data/validation/tests/UnclosedWays.java

@@ -68 +68 @@
             return;
 
         test = w.get("natural");
-        if (test != null && !"coastline".equals(test) && !"cliff".equals(test)) {
+        if (test != null && !"coastline".equals(test) && !"cliff".equals(test) && !"tree_row".equals(test)) {
             set(1101, marktr("natural type {0}"), test);
         }
         test = w.get("landuse");