`sidecar_changes` do not fetch all matches of the referenced description

[bpinsard]

In a config file with these 2 descriptions, the IntendedFor of the fieldmap (2nd) only points to the 1st file matched by the func (1st) description, eg. the run-1 ignoring the remaining runs.

    {
      "id": "id_task",
      "datatype": "func",
      "suffix": "bold",
      "criteria": {
        "SeriesDescription": "func_task-bibabo_run-*",
        "ImageType": ["ORIGINAL", "PRIMARY", "M", "MB", "ND", "MOSAIC"],
        "ImageComments": "Unaliased MB4/PE3/LB*"
      },
      "custom_entities": ["run", "task", "dir", "part-mag"]
    },
    {
      "datatype": "fmap",
      "suffix": "epi",
      "sidecar_changes": {
        "IntendedFor": "id_task"
      },
      "criteria": {
         "SeriesDescription": "func_AP_run-1",
         "ImageType": ["ORIGINAL", "PRIMARY", "M", "MB", "ND", "MOSAIC"]
      },
      "custom_entities": ["run", "dir"]
    },