CSV Mapping fields aren't wrapped with quotes

[tdashworth]

Describe the bug
My export config has two lookup mappings defined which target string fields. When I extract as CSV (via the XRM ToolBox), these fields are not wrapped with quotes ("...") like the other string fields. I'm not sure if this is because the lookup field is not defined in the Schema file?

The result of this is a broken CSV field if any mapping field value contains a comma (,).

To Reproduce
Within the Lookup Mappings, specify a lookup to a text field.

{
  "LookupMapping": {
    "teamroles": {
      "roleid": [
        "name",
        "businessunitid"
      ],
      "teamid": [
        "name",
        "businessunitid"
      ]
    }
  }
}

Expected behavior
Mapped text values to also be wrapped with quotes.