Update lib to version 6.12.5

diff --git a/lib b/lib
index 5bfb408b991028b28b411c28971831f59ece4684..e157947b6ab3ff565fe5beabb78324820770c2a9 160000 (submodule)
--- a/lib
+++ b/lib
@@ -1 +1 @@
-Subproject commit 5bfb408b991028b28b411c28971831f59ece4684
+Subproject commit e157947b6ab3ff565fe5beabb78324820770c2a9