From a674b3ab940ed2c79ad5bcf3b0d339607e00bb8d Mon Sep 17 00:00:00 2001
From: Andrey Antukh <niwi@niwi.nz>
Date: Wed, 9 Dec 2020 14:12:38 +0100
Subject: [PATCH] :bug: Fix unexpected exception on faster merge function.

---
 common/app/common/data.cljc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/app/common/data.cljc b/common/app/common/data.cljc
index a52991a68..99a643129 100644
--- a/common/app/common/data.cljc
+++ b/common/app/common/data.cljc
@@ -213,7 +213,7 @@
 (defn merge
   "A faster merge."
   [& maps]
-  (loop [res  (transient (first maps))
+  (loop [res  (transient (or (first maps) {}))
          maps (next maps)]
     (if (nil? maps)
       (persistent! res)