Index: trunk/test/unit/org/openstreetmap/josm/data/validation/tests/ConditionalKeysTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/data/validation/tests/ConditionalKeysTest.java	(revision 19438)
+++ trunk/test/unit/org/openstreetmap/josm/data/validation/tests/ConditionalKeysTest.java	(revision 19445)
@@ -61,4 +61,5 @@
         assertTrue(test.isValueValid("maxspeed:hgv:conditional", "60 @ (weight>7.5)"));
         assertTrue(test.isValueValid("restriction:conditional", "no_left_turn @ (Mo-Fr 16:00-18:00)"));
+        assertTrue(test.isValueValid("access:conditional", "permit @ Apr-Nov")); // #24531
     }
 }