{"id":"ftl-copy-backup-preserves-previous","text":"`ftl_copy` with `backup=True` preserves the previous version of the destination file before overwriting.","truth_value":"IN","source":"entries/2026/05/11/examples-04-ftl-modules-example_local.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"ftl-copy-backup-preserves-previous","truth_value":"IN","reason":"premise"}]}}