040000 tree d05be5423f57bf671bcfb397fb9b056994e021ed	step_00_before
040000 tree c01826fcb574b52951b92012df407227bfeecf20	step_02_during
040000 tree d6ff44bbb08df8fce0537e1de5d782ae5cdcbfe2	step_04_after