From 570f4d7f54c8342aa3244c568d73ab0167906bcf Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Wed, 1 Nov 2017 15:55:28 -0700
Subject: [PATCH] ircd::json: stringify empty array as expected by serialized
 size.

---
 ircd/json.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/ircd/json.cc b/ircd/json.cc
index c938d7560..66954c816 100644
--- a/ircd/json.cc
+++ b/ircd/json.cc
@@ -707,6 +707,12 @@ ircd::string_view
 ircd::json::stringify(mutable_buffer &buf,
                       const array &v)
 {
+	if(string_view{v}.empty())
+	{
+		consume(buf, copy(buf, value::empty_array));
+		return value::empty_array;
+	}
+
 	consume(buf, copy(buf, string_view{v}));
 	return string_view{v};
 }