From e9f29f3702d5ed2ed2760a45963cac2a1ee0dc57 Mon Sep 17 00:00:00 2001
From: Brian Schroeder <bts@gmail.com>
Date: Wed, 4 Feb 2015 19:37:55 -0500
Subject: [PATCH] Support nil interval in arity-2 timeout!

---
 src/manifold/deferred.clj | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/manifold/deferred.clj b/src/manifold/deferred.clj
index 6bfc9f99..570c3b04 100644
--- a/src/manifold/deferred.clj
+++ b/src/manifold/deferred.clj
@@ -925,7 +925,7 @@
    returned by `chain`, all actions not yet completed will be short-circuited upon timeout."
   ([d interval]
      (cond
-       (realized? d)
+       (or (nil? interval) (realized? d))
        nil
 
        (not (pos? interval))