Index: trunk/resources/data/validator/combinations.mapcss
===================================================================
--- trunk/resources/data/validator/combinations.mapcss	(revision 17481)
+++ trunk/resources/data/validator/combinations.mapcss	(revision 17759)
@@ -647,5 +647,5 @@
 
 /* #14125, #14323, #18185 */
-way[highway][lanes][!lanes:forward][!lanes:backward][oneway!=yes][oneway!=-1][oneway!=reversible][highway!=motorway][junction!=roundabout][lanes>2][get(split(".", tag(lanes)/2), 1)=5] {
+way[highway][lanes][!lanes:forward][!lanes:backward][oneway!=yes][oneway!=-1][oneway!=reversible][highway!=motorway][junction!=roundabout][lanes>2][mod(tag(lanes),2)=1] {
   throwWarning: tr("street with odd number of {0}, but without {1} and {2} or {3}", "{1.key}", "{2.key}", "{3.key}", "{4.key}");
   group: tr("missing tag");
@@ -667,6 +667,6 @@
   assertNoMatch: "way highway=primary turn:lanes=left|right lanes=2";
 }
-way[highway][!lanes:forward][/^.*:lanes:forward$/][!lanes:backward][!get(split(".", tag(lanes)/2), 1)=5],
-way[highway][!lanes:backward][/^.*:lanes:backward$/][!lanes:forward][!get(split(".", tag(lanes)/2), 1)=5] {
+way[highway][!lanes:forward][/^.*:lanes:forward$/][!lanes:backward][mod(tag(lanes),2)=0],
+way[highway][!lanes:backward][/^.*:lanes:backward$/][!lanes:forward][mod(tag(lanes),2)=0] {
   throwOther: tr("{0} without {1}", "{2.key}", "{1.key}");
   group: tr("missing tag");