Use value of vehicle tag as placeholder in derived access fields

see https://github.com/openstreetmap/id-tagging-schema/issues/378

CHANGELOG.md

@@ -47,6 +47,7 @@ _Breaking developer changes, which may affect downstream projects or sites that
 * Handle indoor features like buildings when checking for crossing ways ([#8944])
 #### :rocket: Presets
 * Optimize order of values in dropdowns of `access` fields ([#8945])
+* Use value of `vehicle` tag as placeholder value of `access` fields for `motor_vehicle` and `bicycle`
 #### :hammer: Development
 * Switch build system to [esbuild](https://esbuild.github.io/) for much faster builds ([#8774], thanks [@ mbrzakovic] and [@bhousel])
 

modules/ui/fields/access.js

@@ -230,6 +230,11 @@ export function uiFieldAccess(field, context) {
                 if (d === 'access') {
                     return 'yes';
                 }
+                if (d === 'bicycle' || d === 'motor_vehicle') {
+                    if (tags.vehicle && typeof tags.vehicle === 'string') {
+                        return tags.vehicle;
+                    }
+                }
                 if (tags.access && typeof tags.access === 'string') {
                     return tags.access;
                 }