Use a clone of Commands for sub-Coders, so main Command.coder does not get stomped

aider/commands.py

@@ -778,6 +778,7 @@ class Commands:
             edit_format="help",
             summarize_from_coder=False,
             map_tokens=512,
+            commands=self.clone(),
             map_mul_no_files=1,
         )
         user_msg = self.help.ask(args)
@@ -794,6 +795,14 @@ class Commands:
             dict(role="assistant", content=assistant_msg),
         ]
 
+    def clone(self):
+        return Commands(
+            self.io,
+            None,
+            voice_language=self.voice_language,
+            verify_ssl=self.verify_ssl,
+        )
+
     def cmd_ask(self, args):
         "Ask questions about the code base without editing any files"
 
@@ -808,6 +817,7 @@ class Commands:
             from_coder=self.coder,
             edit_format="ask",
             summarize_from_coder=False,
+            commands=self.clone(),
         )
 
         user_msg = args