Updating python_fb_tools

diff --git a/python_fb_tools b/python_fb_tools
index 2919e48b0e42b8aa092e5956dc325f0e881a9369..681123feeaf1817e60e2251452aeebdcecc34086 160000 (submodule)
--- a/python_fb_tools
+++ b/python_fb_tools
@@ -1 +1 @@
-Subproject commit 2919e48b0e42b8aa092e5956dc325f0e881a9369
+Subproject commit 681123feeaf1817e60e2251452aeebdcecc34086