From 03a10baed4a17441dd23964f13076f318c811464 Mon Sep 17 00:00:00 2001
From: Shigma <1700011071@pku.edu.cn>
Date: Tue, 1 Sep 2020 12:20:50 +0800
Subject: [PATCH] fix(core): take negative message id into account

---
 packages/koishi-core/src/app.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/koishi-core/src/app.ts b/packages/koishi-core/src/app.ts
index af7300ed38..375d7a0b38 100644
--- a/packages/koishi-core/src/app.ts
+++ b/packages/koishi-core/src/app.ts
@@ -145,7 +145,7 @@ export class App extends Context {
 
     let capture: RegExpMatchArray, atSelf = false
     // eslint-disable-next-line no-cond-assign
-    if (capture = message.match(/^\[CQ:reply,id=(\d+)\]/)) {
+    if (capture = message.match(/^\[CQ:reply,id=(-?\d+)\]/)) {
       session.$reply = +capture[1]
       message = message.slice(capture[0].length)
     }