update

diff --git a/mdref b/mdref
index 80ea76521e2ccbbfac1ac0f33f91af1739ead561..687f5fcb8de9250739a01d5855faa868f593fb73 160000 (submodule)
--- a/mdref
+++ b/mdref
@@ -1 +1 @@
-Subproject commit 80ea76521e2ccbbfac1ac0f33f91af1739ead561
+Subproject commit 687f5fcb8de9250739a01d5855faa868f593fb73

diff --git a/refs/http b/refs/http
index a765b2f3cf4cd7645731ac8553c3143c7ab7b077..85d3ca3fa10c24f9e2e21c0778b21e6126b724e0 160000 (submodule)
--- a/refs/http
+++ b/refs/http
@@ -1 +1 @@
-Subproject commit a765b2f3cf4cd7645731ac8553c3143c7ab7b077
+Subproject commit 85d3ca3fa10c24f9e2e21c0778b21e6126b724e0

diff --git a/refs/pq b/refs/pq
index 37d6a26249ee6ec36c6fbacbde9936f60f9e3bf9..fccbf313ecdc885a7689ba4f99a7a46f20467653 160000 (submodule)
--- a/refs/pq
+++ b/refs/pq
@@ -1 +1 @@
-Subproject commit 37d6a26249ee6ec36c6fbacbde9936f60f9e3bf9
+Subproject commit fccbf313ecdc885a7689ba4f99a7a46f20467653