From 7df68fc8525e2b4620de9d6e3949354d0a972aeb Mon Sep 17 00:00:00 2001
From: cn1010 <1062108372@qq.com>
Date: Tue, 17 Mar 2020 16:27:29 +0800
Subject: [PATCH] fix BigInteger0 storage outputs null  (#1471)

---
 src/neo/SmartContract/InteropService.Storage.cs | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/src/neo/SmartContract/InteropService.Storage.cs b/src/neo/SmartContract/InteropService.Storage.cs
index a9fc9e9303..e732cf8b60 100644
--- a/src/neo/SmartContract/InteropService.Storage.cs
+++ b/src/neo/SmartContract/InteropService.Storage.cs
@@ -63,17 +63,10 @@ private static bool PutExInternal(ApplicationEngine engine, StorageContext conte
 
                 if (engine.Snapshot.Storages.TryGet(skey)?.IsConstant == true) return false;
 
-                if (value.Length == 0 && !flags.HasFlag(StorageFlags.Constant))
-                {
-                    // If put 'value' is empty (and non-const), we remove it (implicit `Storage.Delete`)
-                    engine.Snapshot.Storages.Delete(skey);
-                }
-                else
-                {
-                    StorageItem item = engine.Snapshot.Storages.GetAndChange(skey, () => new StorageItem());
-                    item.Value = value;
-                    item.IsConstant = flags.HasFlag(StorageFlags.Constant);
-                }
+                StorageItem item = engine.Snapshot.Storages.GetAndChange(skey, () => new StorageItem());
+                item.Value = value;
+                item.IsConstant = flags.HasFlag(StorageFlags.Constant);
+
                 return true;
             }