Refresh data management dialogs

tests/progression_archive_validation.gd

@@ -361,7 +361,10 @@ func _assert_legacy_data_manifest(parent: String) -> void:
 	file.close()
 	var legacy_data_root := PlayerDataRoot.new()
 	root.add_child(legacy_data_root)
-	assert(legacy_data_root.use_existing_root(legacy_root))
+	# This legacy-manifest check must never replace the user's persisted data
+	# folder selection when the validation is run directly outside the isolated
+	# runner. Activate the fixture only for this process instead.
+	assert(legacy_data_root.activate_process_root(legacy_root))
 	assert(legacy_data_root.root_id == legacy_id)
 	assert(FileAccess.file_exists(legacy_path))
 	var canonical_path: String = legacy_root.path_join(