mixpanel.people.set list bug

atob(base64).json

{
  "$set": {
    "$os": "Mac OS X",
    "$browser": "Chrome",
    "$initial_referrer": "$direct",
    "$initial_referring_domain": "$direct",
    "Test Values": [
      "foo",
      "bar",
      "foobar"
    ]
  },
  "$token": "my token",
  "$distinct_id": "-1"
}

base64

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track.js

mixpanel.people.set( "Test Values", ["foo","bar", "foobar"] )