Fail to edit a quote with multiple child blocks

> one
>> two

{
  "blocks" : [ {
    "type" : "quote",
    "styles" : { },
    "content" : [ {
      "type" : "paragraph",
      "styles" : { },
      "content" : [ {
        "type" : "text",
        "styles" : { },
        "content" : " one"
      } ]
    }, {
      "type" : "quote",
      "styles" : { },
      "content" : [ {
        "type" : "paragraph",
        "styles" : { },
        "content" : [ {
          "type" : "text",
          "styles" : { },
          "content" : " two"
        } ]
      } ]
    } ]
  } ]
}