moonshot: fix assert failure

diff --git a/moonshot b/moonshot
index b858c8f..309a352 160000 (submodule)
--- a/moonshot
+++ b/moonshot
@@ -1 +1 @@
-Subproject commit b858c8f8860b4e3a0307d4e4d2f91642d0f45a2c
+Subproject commit 309a35211240fcc0a189f9e044aab2cca2881ff9