Index: trunk/data/validator/ignoretags.cfg
===================================================================
--- trunk/data/validator/ignoretags.cfg	(revision 9316)
+++ trunk/data/validator/ignoretags.cfg	(revision 9322)
@@ -136,4 +136,5 @@
 K:building=static_caravan
 K:leisure=recreation_ground
+K:old_railway_operator=PRR
 ;
 ; Highway Key/Value Pairs
@@ -256,2 +257,17 @@
 K:type=tmc
 K:type=TMC
+;
+; Tags not yet decided (to remove from this section when added or deprecated) 
+; see https://josm.openstreetmap.de/ticket/12240
+; see https://josm.openstreetmap.de/ticket/11915
+; see https://josm.openstreetmap.de/ticket/10991
+; see https://josm.openstreetmap.de/ticket/10759
+;
+K:golf=bunker
+K:golf=fairway
+K:maintenance=gritting
+K:man_made=mast
+K:man_made=silo
+K:power=portal
+K:route=foot
+K:seasonal=yes