JsonDoc data gets corrupted when passing to behaviour

[doublec]

I parse a string of JSON using the Json package. Printing the JsonDoc shows correct data. Passing that same JsonDoc to a behaviour then printing it shows corrupt data. Changing the behaviour to a function makes the data print correctly again.

The following is test code that demonstrates the issue:

use "json"

actor Main
   let test: String = "{\"result\":{\"version\":110200,\"protocolversion\":70002,\"walletversion\":60000,\"balance\":0.00000000,\"blocks\":410357,\"timeoffset\":-1,\"connections\":8,\"proxy\":\"\",\"difficulty\":178659257772.52728271,\"testnet\":false,\"keypoololdest\":1439278680,\"keypoolsize\":101,\"paytxfee\":0.00000000,\"relayfee\":0.00005000,\"errors\":\"\"},\"error\":null,\"id\":\"0\"}"

  new create(env:Env) =>
    try
      let json = recover iso JsonDoc end
      json.parse(test)
      env.out.print(json.string())
      foo(env, consume json)
    end

  be foo(env:Env, json: JsonDoc iso) =>
    env.out.print("foo: " + json.string())  

The first print of the json string in the constructor displays:

{
  "error": null,
  "id": "0",
  "result": {
    "relayfee": 5e-05.0,
    "balance": 0.0,
    "walletversion": 60000,
    "proxy": "",
    "connections": 8,
    "timeoffset": -1,
    "keypoololdest": 1439278680,
    "testnet": false,
    "paytxfee": 0.0,
    "difficulty": 1.78659e+11,
    "keypoolsize": 101,
    "protocolversion": 70002,
    "blocks": 410357,
    "version": 110200,
    "errors": ""
  }
}

The second print in the foo behaviour displays:

foo: {
  "error": null,
  "id": "0",
  "result": {
    "balance": "\n  \"",
    "walletversion": "\n  ",
    "proxy": "",
    "connections": "\n  \"error\": null",
    "timeoffset": "\n  \"error\": ",
    "protocolversion": "\n",
    "blocks": "\n  \"error",
    "errors": ""
  }
}

If the foo behaviour is changed to a function then it displays correctly.

[sylvanc]

Great bug report. PR #805 fixes this.