Index: trunk/data/validator/geometry.mapcss
===================================================================
--- trunk/data/validator/geometry.mapcss	(revision 10231)
+++ trunk/data/validator/geometry.mapcss	(revision 10232)
@@ -268,2 +268,7 @@
   throwWarning: tr("Node connects a power line or cable with an object which is not related to the power infrastructure.");
 }
+
+/* #12646 */
+way[waterway]!:closed >[index=-1] node!:connection:in-downloaded-area { 
+  throwWarning: tr("Waterway ends without a connection to another waterway or the direction of the waterway is wrong.");
+}
Index: trunk/data/validator/ignoretags.cfg
===================================================================
--- trunk/data/validator/ignoretags.cfg	(revision 10231)
+++ trunk/data/validator/ignoretags.cfg	(revision 10232)
@@ -153,4 +153,5 @@
 K:priority_road=yes_unposted
 K:priority_road=end
+K:hazmat=designated
 K:hazmat=no
 K:hazmat:water=no