Index: trunk/data/validator/combinations.mapcss
===================================================================
--- trunk/data/validator/combinations.mapcss	(revision 15310)
+++ trunk/data/validator/combinations.mapcss	(revision 15311)
@@ -618,2 +618,9 @@
   group: tr("missing tag");
 }
+
+/* #17989 */
+node[emergency_ward_entrance][emergency!=emergency_ward_entrance] {
+  throwWarning: tr("{0} without {1}", "{0.tag}", "{1.tag}");
+  group: tr("missing tag");
+  fixAdd: "emergency=emergency_ward_entrance";
+}