No ticket: move jQuery.expando to core

src/core.js

@@ -338,6 +338,9 @@ jQuery.extend = jQuery.fn.extend = function() {
 };
 
 jQuery.extend({
+	// Unique for each copy of jQuery on the page
+	expando: "jQuery" + ( core_version + Math.random() ).replace( /\D/g, "" ),
+
 	noConflict: function( deep ) {
 		if ( window.$ === jQuery ) {
 			window.$ = _$;

src/data.js

@@ -201,10 +201,6 @@ data_priv = new Data();
 
 
 jQuery.extend({
-	// Unique for each copy of jQuery on the page
-	// Non-digits removed to match rinlinejQuery
-	expando: "jQuery" + ( core_version + Math.random() ).replace( /\D/g, "" ),
-
 	// This is no longer relevant to jQuery core, but must remain
 	// supported for the sake of jQuery 1.9.x API surface compatibility.
 	acceptData: function() {