fix the turn restriction editor not supporting bidirectional roads

CHANGELOG.md

@@ -48,6 +48,7 @@ _Breaking developer changes, which may affect downstream projects or sites that
 #### :bug: Bugfixes
 * Prevent degenerate ways caused by deleting a corner of a triangle ([#10003], thanks [@k-yle])
 * Fix briefly disappearing data layer during background layer tile layer switching transition ([#10748])
+* Fix the turn restriction editor not supporting bidirectional roads ([#10731], thanks [@k-yle])
 * Preserve imagery offset during tile layer switching transition ([#10748])
 * Fix over-saturated map tiles near the border of the tile service's coverage area ([#10747], thanks [@hlfan])
 * Fix too dim markers of selected/hovered photo of some street level imagery layers ([#10755], thanks [@draunger])
@@ -60,6 +61,7 @@ _Breaking developer changes, which may affect downstream projects or sites that
 [#7381]: https://github.com/openstreetmap/iD/issues/7381
 [#10003]: https://github.com/openstreetmap/iD/pull/10003
 [#10720]: https://github.com/openstreetmap/iD/issues/10720
+[#10731]: https://github.com/openstreetmap/iD/pull/10731
 [#10747]: https://github.com/openstreetmap/iD/issues/10747
 [#10748]: https://github.com/openstreetmap/iD/issues/10748
 [#10755]: https://github.com/openstreetmap/iD/issues/10755

modules/osm/intersection.js

@@ -211,7 +211,8 @@ export function osmIntersection(graph, startVertexId, maxDistance) {
     // walking the intersection graph later and rendering turn arrows.
 
     function withMetadata(way, vertexIds) {
-        var __oneWay = way.isOneWay();
+        // bidirectional ways are two-way from an intersection's perspective
+        var __oneWay = way.isOneWay() && !way.isBiDirectional();
 
         // which affixes are key vertices?
         var __first = (vertexIds.indexOf(way.first()) !== -1);