Make sure multiple bound events have their namespaces and data mainta…

…ined. Fixes #3549.

src/event.js

@@ -71,19 +71,28 @@ jQuery.event = {
 		// Handle multiple events separated by a space
 		// jQuery(...).bind("mouseover mouseout", fn);
 		types = types.split( /\s+/ );
-		var type, i=0;
+
+		var type, i = 0;
+
 		while ( (type = types[ i++ ]) ) {
 			// Namespaced event handlers
 			var namespaces = type.split(".");
 			type = namespaces.shift();
+
+			if ( i > 1 ) {
+				handler = jQuery.proxy( handler );
+
+				if ( data !== undefined ) {
+					handler.data = data;
+				}
+			}
+
 			handler.type = namespaces.slice(0).sort().join(".");
 
 			// Get the current list of functions bound to this event
 			var handlers = events[ type ],
 				special = this.special[ type ] || {};
 
-
-
 			// Init the event handler queue
 			if ( !handlers ) {
 				handlers = events[ type ] = {};

test/unit/event.js

@@ -37,6 +37,40 @@ test("bind(), multiple events at once", function() {
 	equals( mouseoverCounter, 1, "bind() with multiple events at once" );
 });
 
+test("bind(), multiple events at once and namespaces", function() {
+	expect(7);
+
+	var cur, obj = {};
+
+	var div = jQuery("<div/>").bind("focusin.a", function(e) {
+		equals( e.type, cur, "Verify right single event was fired." );
+	});
+
+	cur = "focusin";
+	div.trigger("focusin.a");
+
+	div = jQuery("<div/>").bind("click mouseover", obj, function(e) {
+		equals( e.type, cur, "Verify right multi event was fired." );
+		equals( e.data, obj, "Make sure the data came in correctly." );
+	});
+
+	cur = "click";
+	div.trigger("click");
+
+	cur = "mouseover";
+	div.trigger("mouseover");
+
+	div = jQuery("<div/>").bind("focusin.a focusout.b", function(e) {
+		equals( e.type, cur, "Verify right multi event was fired." );
+	});
+
+	cur = "focusin";
+	div.trigger("focusin.a");
+
+	cur = "focusout";
+	div.trigger("focusout.b");
+});
+
 test("bind(), no data", function() {
 	expect(1);
 	var handler = function(event) {