Arvados

Hello! Found a problem while trying return directory from cwl. Tested the following cwl on both cwl-runner and arvados-cwl-runner. According to documentation both support cwl v1.0. On cwl-runner all works fine: receive file according to the parameter set in $(inputs.fileName).
When trying to run the same cwl with arvados-cwl-runner get an error:
WorkflowException: Error collecting output for parameter 'dir': Did not find output file with glob pattern: '['./']'

Example that I tested

task.cwl

cwlVersion: v1.0
class: CommandLineTool
hints:
  DockerRequirement:
    dockerPull: ubuntu
baseCommand: echo
arguments: ["return dir"]
requirements:
  InitialWorkDirRequirement:
    listing:
      - entryname: $(inputs.fileName)
        entry: Some text inside the file

inputs:
  fileName:
    type: string

outputs:
  dir:
    type: Directory
    outputBinding:
      glob: "./" 

fileName: textfile.txt