From d05cad4c65e56e079a86f5986558716531e00388 Mon Sep 17 00:00:00 2001
From: Muayyad alsadi <alsadi@gmail.com>
Date: Mon, 28 Mar 2022 13:32:22 +0300
Subject: [PATCH] FIXES #462: fix extends merge

---
 podman_compose.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/podman_compose.py b/podman_compose.py
index 6ad7e292..818688a6 100755
--- a/podman_compose.py
+++ b/podman_compose.py
@@ -1150,6 +1150,8 @@ def normalize(compose):
         normalize_service(service)
     return compose
 
+def clone(value):
+    return value.copy() if is_list(value) or is_dict(value) else value
 
 def rec_merge_one(target, source):
     """
@@ -1159,7 +1161,7 @@ def rec_merge_one(target, source):
     for key, value in source.items():
         if key in target:
             continue
-        target[key] = value
+        target[key] = clone(value)
         done.add(key)
     for key, value in target.items():
         if key in done:
@@ -1168,7 +1170,7 @@ def rec_merge_one(target, source):
             continue
         value2 = source[key]
         if key == "command":
-            target[key] = value2
+            target[key] = clone(value2)
             continue
         if not isinstance(value2, type(value)):
             value_type = type(value)