APOC import file name doesn't the actual name

[lingvisa]

Latest version of neo4j and apoc:

CALL apoc.import.csv(
  [{fileName: 'file:/persons.csv', labels: ['Person']}],
  [{fileName: 'file:/knows.csv'}],
  {delimiter: '|', arrayDelimiter: ',', stringIds: false}
)

Then in the browser panel, it displays as:

|file|source|format|nodes|relationships|properties|time|rows|batchSize|batches|done|data|
|---|---|---|---|---|---|---|---|---|---|---|---|
|"progress.csv"|"file"|"csv"|2|1|8|23|0|-1|0|true|null|

How does the file name 'progress.csv' come? The node and relationship names are 'persons.csv' and 'know.csv' respectively.