From 2c25c51eb8b0f3f1a9321b2dede7afde9d2f67e4 Mon Sep 17 00:00:00 2001
From: Joe Bryan <joemfb@gmail.com>
Date: Mon, 4 May 2020 16:13:51 -0700
Subject: [PATCH] u3: fixes bug in +rub jet (unsafe coercion from c3_w to noun)

---
 pkg/urbit/jets/e/rub.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pkg/urbit/jets/e/rub.c b/pkg/urbit/jets/e/rub.c
index 716c0beb5..641e53035 100644
--- a/pkg/urbit/jets/e/rub.c
+++ b/pkg/urbit/jets/e/rub.c
@@ -14,7 +14,13 @@
     u3_atom w, x, y, z;
     u3_atom p, q;
 
-    u3_atom m = u3qa_add(a, u3r_met(0, b));
+    u3_atom m;
+    {
+      c3_w  bit_w = u3r_met(0, b);
+      u3_noun bit = u3i_words(1, &bit_w);
+      m = u3qa_add(a, bit);
+      u3z(bit);
+    }
 
     //  Compute c and d.
     {