Use Sizzle.Expr.match.globalPOS for identifying POS selectors in traversing. Fixes #10970.

sizzle @ 423f35af

-Subproject commit 935874052e54b4686b4e69b653eb05cd6e25c447
+Subproject commit 423f35af8bf43f3f07bb17284e21608f08372c22

src/traversing.js

@@ -6,7 +6,7 @@ var runtil = /Until$/,
 	rmultiselector = /,/,
 	isSimple = /^.[^:#\[\.,]*$/,
 	slice = Array.prototype.slice,
-	POS = jQuery.expr.match.POS,
+	POS = jQuery.expr.match.globalPOS,
 	// methods guaranteed to produce a unique set when starting from a unique set
 	guaranteedUnique = {
 		children: true,

test/unit/traversing.js

@@ -38,7 +38,7 @@ test("find(node|jQuery object)", function() {
 });
 
 test("is(String|undefined)", function() {
-	expect(29);
+	expect(30);
 	ok( jQuery("#form").is("form"), "Check for element: A form must be a form" );
 	ok( !jQuery("#form").is("div"), "Check for element: A form is not a div" );
 	ok( jQuery("#mark").is(".blog"), "Check for class: Expected class 'blog'" );
@@ -70,8 +70,10 @@ test("is(String|undefined)", function() {
 	ok( jQuery("#en").is("[lang=\"en\"] , [lang=\"de\"]"), "Comma-seperated; Check for lang attribute: Expect en or de" );
 	ok( jQuery("#en").is("[lang=\"de\"] , [lang=\"en\"]"), "Comma-seperated; Check for lang attribute: Expect en or de" );
 
-	ok( !jQuery(window).is('a'), "Checking is on a window does not throw an exception(#10178)" );
-	ok( !jQuery(document).is('a'), "Checking is on a document does not throw an exception(#10178)" );
+	ok( !jQuery(window).is("a"), "Checking is on a window does not throw an exception(#10178)" );
+	ok( !jQuery(document).is("a"), "Checking is on a document does not throw an exception(#10178)" );
+
+	ok( jQuery("#option1b").is("#select1 option:not(:first)"), "POS inside of :not() (#10970)" );
 });
 
 test("is(jQuery)", function() {