From 3c741682e59a41fcc45a5b9a370c7f268be7729e Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Tue, 14 Apr 2015 09:54:44 +0100
Subject: [PATCH] Correctly increment the _next_id initially

---
 synapse/storage/util/id_generators.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/synapse/storage/util/id_generators.py b/synapse/storage/util/id_generators.py
index 8f419323a..2e2a40898 100644
--- a/synapse/storage/util/id_generators.py
+++ b/synapse/storage/util/id_generators.py
@@ -55,9 +55,11 @@ class IdGenerator(object):
                 )
 
                 val, = txn.fetchone()
-                self._next_id = val or 2
+                cur = val or 0
+                cur += 1
+                self._next_id = cur + 1
 
-                return 1
+                return cur
 
 
 class StreamIdGenerator(object):