Update Sizzle. Fixes #3144, #6863.

diff --git a/src/sizzle b/src/sizzle
index 0afda8fcb59cfb16fa75e25b9eea25ee32841bb3..3ffd629e38c3a1cc31febc010718c985a4f85a4d 160000 (submodule)
--- a/src/sizzle
+++ b/src/sizzle
@@ -1 +1 @@
-Subproject commit 0afda8fcb59cfb16fa75e25b9eea25ee32841bb3
+Subproject commit 3ffd629e38c3a1cc31febc010718c985a4f85a4d