From 129d24721d13a7b5e38aecccbdf7d50d65d61c83 Mon Sep 17 00:00:00 2001
From: Tom Augspurger <tom.w.augspurger@gmail.com>
Date: Wed, 18 Sep 2024 14:42:30 -0500
Subject: [PATCH] Fixed codec for v2 data with no fill value

xref https://github.com/zarr-developers/zarr-python/pull/2179/files#r1765600769
---
 src/zarr/core/array.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/zarr/core/array.py b/src/zarr/core/array.py
index 3a455b239f..2cf6d69404 100644
--- a/src/zarr/core/array.py
+++ b/src/zarr/core/array.py
@@ -313,7 +313,7 @@ async def _create_v2(
             chunks=chunks,
             order=order,
             dimension_separator=dimension_separator,
-            fill_value=fill_value,
+            fill_value=0 if fill_value is None else fill_value,
             compressor=compressor,
             filters=filters,
             attributes=attributes,