Copy removal

copienator/commands/clean.py

@@ -153,7 +153,8 @@ def build_cleanup_plan(workspace: EvaluationWorkspace) -> CleanupPlan:
 
     files, directories = _workspace_entries(workspace.root)
 
-    kept_files = set(processed_copies)
+    kept_files = {path for path in files if path.is_relative_to(workspace.root / "BackUp")}
+    kept_files.update(processed_copies)
     kept_files.add(workspace.correction_file)
     lock_file = workspace.root / ".copienator-finalisation.lock"
     if lock_file in files: