Index: trunk/resources/data/validator/combinations.mapcss
===================================================================
--- trunk/resources/data/validator/combinations.mapcss	(revision 17953)
+++ trunk/resources/data/validator/combinations.mapcss	(revision 17954)
@@ -345,23 +345,12 @@
 }
 
-/* only {0.key}, #11104, #12422, #14950, #19572, #20902 */
-/* relations excluded as there is a test for missing type=* plus several other test depending on the type exist */
-node[access][eval(number_of_tags()) = 1],
-way[access][eval(number_of_tags()) = 1],
-node[area][eval(number_of_tags()) = 1]!.area_yes_autofix,
-way[area][eval(number_of_tags()) = 1]!.area_yes_autofix,
-node[lanes][eval(number_of_tags()) = 1],
-way[lanes][eval(number_of_tags()) = 1],
-node[layer][eval(number_of_tags()) = 1],
-way[layer][eval(number_of_tags()) = 1],
-way[level][eval(number_of_tags()) = 1], /* nodes might be valid, e.g. start and end nodes of steps */
-node[lit][eval(number_of_tags()) = 1],
-way[lit][eval(number_of_tags()) = 1],
-node[name][eval(number_of_tags()) = 1],
-way[name][eval(number_of_tags()) = 1],
-node[ref][eval(number_of_tags()) = 1],
-way[ref][eval(number_of_tags()) = 1],
-node[surface][eval(number_of_tags()) = 1],
-way[surface][eval(number_of_tags()) = 1] {
+/* only {0.key}, #11104, #12422, #14950, #19572 */
+*[lanes][eval(number_of_tags()) = 1],
+*[surface][eval(number_of_tags()) = 1],
+*[access][eval(number_of_tags()) = 1],
+*[area][eval(number_of_tags()) = 1]!.area_yes_autofix,
+*[name][eval(number_of_tags()) = 1],
+*[ref][eval(number_of_tags()) = 1],
+*[lit][eval(number_of_tags()) = 1] {
   throwWarning: tr("incomplete object: only {0}", "{0.key}");
   set only_one_tag;
@@ -375,6 +364,5 @@
 }
 /* only {0.tag}, #15269 */
-node[tourism=attraction][eval(number_of_tags()) = 1], 
-way[tourism=attraction][eval(number_of_tags()) = 1] {
+*[tourism=attraction][eval(number_of_tags()) = 1] {
   throwWarning: tr("incomplete object: only {0}", "{0.tag}");
   group: tr("missing tag");