From d8dd1caa903bf8494bdb93d5dc695c9c9e5cac14 Mon Sep 17 00:00:00 2001
From: Andrew Kay <git@ajk.me>
Date: Mon, 8 Feb 2021 19:58:23 -0600
Subject: [PATCH] Fix bug where error template was modified resulting in
 incorrect message

---
 pycoax/coax/serial_interface.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pycoax/coax/serial_interface.py b/pycoax/coax/serial_interface.py
index dd16b29..5c6f4e4 100644
--- a/pycoax/coax/serial_interface.py
+++ b/pycoax/coax/serial_interface.py
@@ -4,6 +4,7 @@ coax.serial_interface
 """
 
 import struct
+from copy import copy
 from sliplib import SlipWrapper, ProtocolError
 
 from .interface import Interface
@@ -164,7 +165,7 @@ def _convert_error(message):
         return InterfaceError(f'Invalid error response: {message}')
 
     if message[1] in ERROR_MAP:
-        error = ERROR_MAP[message[1]]
+        error = copy(ERROR_MAP[message[1]])
 
         # Append description if included.
         if len(message) > 2: