Index: trunk/data/validator/deprecated.mapcss
===================================================================
--- trunk/data/validator/deprecated.mapcss	(revision 9322)
+++ trunk/data/validator/deprecated.mapcss	(revision 9363)
@@ -632,2 +632,12 @@
   fixChangeKey: "amenity => shop";
 }
+
+/* #12311 */
+*[amenity=studio][type=audio],
+*[amenity=studio][type=radio],
+*[amenity=studio][type=television],
+*[amenity=studio][type=video] {
+  throwWarning: tr("{0} is deprecated for {1}", "{1.key}", "{0.tag}");
+  suggestAlternative: "studio";
+  fixChangeKey: "type => studio";
+}