From 5cf665fa212715043cae794b48fbbe02b364fdf8 Mon Sep 17 00:00:00 2001
From: yanyongyu <yanyongyu_1@126.com>
Date: Sat, 28 Aug 2021 19:42:32 +0800
Subject: [PATCH] :bug: fix format field error

---
 nonebot/adapters/_formatter.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nonebot/adapters/_formatter.py b/nonebot/adapters/_formatter.py
index 0e1e59b7..c0449fd6 100644
--- a/nonebot/adapters/_formatter.py
+++ b/nonebot/adapters/_formatter.py
@@ -105,4 +105,4 @@ class MessageFormatter(Formatter, Generic[TM]):
                                              [""])), auto_arg_index
 
     def format_field(self, value: Any, format_spec: str) -> Any:
-        return super().format_field(value, format_spec) if format_spec else None
+        return super().format_field(value, format_spec) if format_spec else value