Updates hydra: 3a4622b Updates TODO

diff --git a/hydra b/hydra
index 4eec4ad9f547b987c686c07d90d51bbbf547f508..3a4622b57877315a8e7221448718122d958dba39 160000 (submodule)
--- a/hydra
+++ b/hydra
@@ -1 +1 @@
-Subproject commit 4eec4ad9f547b987c686c07d90d51bbbf547f508
+Subproject commit 3a4622b57877315a8e7221448718122d958dba39