From f30b7b7e3b1c69619a02194d42a74425cfe2dd8d Mon Sep 17 00:00:00 2001
From: Ariel Weisberg <aweisberg@apple.com>
Date: Wed, 10 Apr 2024 15:12:39 -0400
Subject: [PATCH] Fix nodes sharing mutable environment variable map

Patch by Ariel Weisberg; Reviewed by Joshua McKenszie for CASSANDRA-19551
---
 ccmlib/node.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ccmlib/node.py b/ccmlib/node.py
index 778c9c9f..07c18c28 100644
--- a/ccmlib/node.py
+++ b/ccmlib/node.py
@@ -148,7 +148,7 @@ def __init__(self,
         self.__install_dir = None
         self.__global_log_level = None
         self.__classes_log_level = {}
-        self.__environment_variables = environment_variables or {}
+        self.__environment_variables = environment_variables.copy() or {}
         self.__original_java_home = None
         self.__conf_updated = False