Issue with map operation

[ninasamartin]

Hey @diegoholiveira

I'm having an issue when using map operation. Basically I'm trying to iterate over an array of arrays, and then using the in operation to evaluate for every given array if the passed argument is present in each one. My rule looks like this:

{
  "map": [
    {
      "var": "listOfLists"
    },
    {
      "in": [
        "item_a",
        {
          "var": ""
        }
      ]
    }
  ]
}

And the input data:

{
  "listOfLists": [
    ["item_a", "item_b", "item_c"],
    ["item_b", "item_c"],
    ["item_a", "item_c"]
  ]
}

So basically I expect to get an array of booleans as output, that informs me for every list if item_a was present:

[
    true,
    false,
    true
]

But for some reason, this is what I'm getting:

[
    true,
    true
]

It looks like it's ignoring false values, showing only the true ones. For the record, I ran the test in the JsonLogic site and I get the result I was expecting, so I think It could be an issue with the map implementation. Thanks!