1 files changed, 7 insertions, 1 deletions
diff --git a/Lib/test/libregrtest/save_env.py b/Lib/test/libregrtest/save_env.py
index 8309f26..3c45621 100644
--- a/Lib/test/libregrtest/save_env.py
+++ b/Lib/test/libregrtest/save_env.py
@@ -268,7 +268,13 @@ class saved_test_environment:
     def __exit__(self, exc_type, exc_val, exc_tb):
         saved_values = self.saved_values
         del self.saved_values
-        support.gc_collect()  # Some resources use weak references
+
+        # Some resources use weak references
+        support.gc_collect()
+
+        # Read support.environment_altered, set by support helper functions
+        self.changed |= support.environment_altered
+
         for name, get, restore in self.resource_info():
             current = get()
             original = saved_values.pop(name)