From f74d73327b6c236173f312d85f84cd9ace057099 Mon Sep 17 00:00:00 2001
From: Rapptz <rapptz@gmail.com>
Date: Sat, 11 May 2019 18:17:57 -0400
Subject: [PATCH] [commands] Explicitly assign invoked_subcommand to None
 before invoking

This should fix instances of it not working as expected in nested
groups.
---
 discord/ext/commands/core.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/discord/ext/commands/core.py b/discord/ext/commands/core.py
index f58902021..9a0d0c3f0 100644
--- a/discord/ext/commands/core.py
+++ b/discord/ext/commands/core.py
@@ -1132,6 +1132,7 @@ class Group(GroupMixin, Command):
         return ret
 
     async def invoke(self, ctx):
+        ctx.invoked_subcommand = None
         early_invoke = not self.invoke_without_command
         if early_invoke:
             await self.prepare(ctx)
@@ -1159,6 +1160,7 @@ class Group(GroupMixin, Command):
             await super().invoke(ctx)
 
     async def reinvoke(self, ctx, *, call_hooks=False):
+        ctx.invoked_subcommand = None
         early_invoke = not self.invoke_without_command
         if early_invoke:
             ctx.command = self