gh-152298: Snapshot lazy proxy in reentrant test

Author: 1sgtpepper

Lib/test/test_lazy_import/__init__.py

@@ -775,7 +775,7 @@ def custom_import(name, globals=None, locals=None, fromlist=None,
             class Reenter:
                 def __del__(self):
                     try:
-                        proxies.append(globals()["target"])
+                        proxies.append(globals().copy()["target"])
                         assert target.VALUE == "resolved"
                     except BaseException as exc:
                         errors.append((type(exc).__name__, str(exc)))