diff --git a/topic0 b/topic0
index 63794c4..cb6abe8 160000
--- a/topic0
+++ b/topic0
@@ -1 +1 @@
-Subproject commit 63794c46467dea47fd99ec47db745c482887367e
+Subproject commit cb6abe87055d2e2d54ba6a985903031420c4cbb1