From 2e1b49b0095751ac645510c64a40c11922bbdd33 Mon Sep 17 00:00:00 2001
From: Matt Jibson <matt.jibson@gmail.com>
Date: Fri, 13 Nov 2015 15:41:39 -0500
Subject: [PATCH] Allow None for max_id during migrations

This allows empty databases with no max_id to run.

fixes #869
---
 util/migrate/allocator.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/util/migrate/allocator.py b/util/migrate/allocator.py
index 6e531d251..e154c9e23 100644
--- a/util/migrate/allocator.py
+++ b/util/migrate/allocator.py
@@ -126,6 +126,7 @@ def yield_random_entries(batch_query, primary_key_field, batch_size, max_id):
       an "id" field which can be inspected.
   """
 
+  max_id = max(max_id, 1)
   allocator = CompletedKeys(max_id + 1)
 
   try: