Landing pull request 530. Fixes coniditional path for tr, td defaultDisplay() calls. Fixes #10416.

More Details:
 - https://github.com/jquery/jquery/pull/530
 - http://bugs.jquery.com/ticket/10416

src/effects.js

@@ -38,7 +38,7 @@ jQuery.fn.extend({
 					// Set elements which have been overridden with display: none
 					// in a stylesheet to whatever the default browser style is
 					// for such an element
-					if ( display === "" && jQuery.css( elem, "display" ) === "none" ) {
+					if ( display === "none" || ( display === ""  && jQuery.css( elem, "display" ) === "none" ) ) {
 						jQuery._data(elem, "olddisplay", defaultDisplay(elem.nodeName));
 					}
 				}

test/unit/effects.js

@@ -188,6 +188,21 @@ test("show() resolves correct default display #8099", function() {
 
 });
 
+test("defaultDisplay() correctly determines tr, td display #10416", function() {
+
+	expect( 1 );
+	var tr = "<tr></tr>",
+			td = "<td>new</td>";
+
+	jQuery( tr ).append( td ).appendTo( "#table" );
+	jQuery( tr ).hide().append( td ).appendTo( "#table" ).show();
+
+	equal(
+		jQuery( "#table" ).find( "tr" ).eq( 1 ).css( "display" ),
+		jQuery( "#table" ).find( "tr" ).eq( 0 ).css( "display" ),
+		"defaultDisplay() returns correct tr display values"
+	);
+});
 
 test("animate(Hash, Object, Function)", function() {
 	expect(1);