Sizzle: fix chaining pseudo selectors placed after pos selectors. Fixes #12208.

diff --git a/src/sizzle b/src/sizzle
index a0523a50942971b41af6aba39b39ee81c1fc5f8a..3d4f4e9436d7bdcb60e8880848c4a567bebbe91c 160000 (submodule)
--- a/src/sizzle
+++ b/src/sizzle
@@ -1 +1 @@
-Subproject commit a0523a50942971b41af6aba39b39ee81c1fc5f8a
+Subproject commit 3d4f4e9436d7bdcb60e8880848c4a567bebbe91c