Index: resources/data/validator/combinations.mapcss
===================================================================
--- resources/data/validator/highway.mapcss	(revision 17941)
+++ resources/data/validator/highway.mapcss	(working copy)
@@ -172,12 +172,12 @@
 way[turn:both_ways               ][turn:both_ways                !~ /^(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)$/],
 way[turn:both_ways:forward       ][turn:both_ways:forward        !~ /^(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)$/],
 way[turn:both_ways:backward      ][turn:both_ways:backward       !~ /^(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)$/],
-way[turn:lanes                   ][turn:lanes                    !~ /^(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)(\|(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*))*$/],
-way[turn:lanes:forward           ][turn:lanes:forward            !~ /^(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)(\|(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*))*$/],
-way[turn:lanes:backward          ][turn:lanes:backward           !~ /^(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)(\|(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*))*$/],
-way[turn:lanes:both_ways         ][turn:lanes:both_ways          !~ /^(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)(\|(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*))*$/], 
-way[turn:lanes:both_ways:forward ][turn:lanes:both_ways:forward  !~ /^(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)(\|(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*))*$/],
-way[turn:lanes:both_ways:backward][turn:lanes:both_ways:backward !~ /^(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)(\|(none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*))*$/] {
+way[turn:lanes                   ][turn:lanes                    !~ /^(|none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)(\|(|none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*))*$/],
+way[turn:lanes:forward           ][turn:lanes:forward            !~ /^(|none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)(\|(|none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*))*$/],
+way[turn:lanes:backward          ][turn:lanes:backward           !~ /^(|none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)(\|(|none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*))*$/],
+way[turn:lanes:both_ways         ][turn:lanes:both_ways          !~ /^(|none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)(\|(|none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*))*$/], 
+way[turn:lanes:both_ways:forward ][turn:lanes:both_ways:forward  !~ /^(|none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)(\|(|none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*))*$/],
+way[turn:lanes:both_ways:backward][turn:lanes:both_ways:backward !~ /^(|none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*)(\|(|none|((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through)(;((sharp_|slight_|merge_to_|slide_)?(left|right)|reverse|through))*))*$/] {
   throwWarning: tr("unusual value of {0}", "{0.key}");
   assertMatch: "way turn=straight"; /* through would be correct */
   assertMatch: "way turn=slight_reverse"; /* wrong value */
@@ -186,7 +186,7 @@
   assertMatch: "way turn:lanes:forward=straight|right"; /* through would be correct */
   assertMatch: "way turn:lanes:forward=slight_reverse|right"; /* wrong value */
   assertMatch: "way turn:lanes=left;none|right"; /* "none" needs to be a solo value */
-  assertNoMatch: "way turn:lanes:forward=sharp_left;left|left;through;slight_right|slight_right;right";
+  assertNoMatch: "way turn:lanes:forward=sharp_left;left||left;through;slight_right|slight_right;right|";
 }
 
 /* #20442 traffic signals or similar on roundabouts */
@@ -194,4 +194,4 @@
 node[highway=~/^(traffic_signals|stop|give_way)$/][!traffic_signals       ] < way[highway][junction=roundabout] {
   throwWarning: tr("{0} without right of way", "{1.tag}");
   suggestAlternative: "junction=circular";
-}
\ No newline at end of file
+}