From 67f892455f6cc0bf798a57ee82b9f0072c6cac17 Mon Sep 17 00:00:00 2001
From: Lincoln Stein <lincoln.stein@gmail.com>
Date: Tue, 7 Feb 2023 22:09:34 -0500
Subject: [PATCH] fix crash when --prompt="prompt" is used in CLI

- The following were supposed to be equivalent, but the latter crashes:
```
invoke> banana sushi
invoke> --prompt="banana sushi"
```
This PR fixes the problem.

- Fixes #2548
---
 ldm/invoke/args.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ldm/invoke/args.py b/ldm/invoke/args.py
index c9c7ffe3b0..ace0786154 100644
--- a/ldm/invoke/args.py
+++ b/ldm/invoke/args.py
@@ -230,7 +230,8 @@ class Args(object):
                     switches = ''
         try:
             self._cmd_switches = self._cmd_parser.parse_args(shlex.split(switches,comments=True))
-            setattr(self._cmd_switches,'prompt',prompt)
+            if not getattr(self._cmd_switches,'prompt'):
+                setattr(self._cmd_switches,'prompt',prompt)
             return self._cmd_switches
         except:
             return None