Defaults and oneOf not working as expected

[technotic]

This is with version 1.14.1.

It seems that if there are multiple oneOf subschemas which share the same field and one has a default and the others do not then the default is always used no matter which subschema is matched. This feels like a defect?

eg. schema:

{
  "title": "Example",
  "oneOf": [
    {
      "type": "object",
      "properties": {
        "kind": {
          "enum": [
            "A"
          ]
        },
        "foo": {
          "type": "string",
          "default": "bar"
        }
      }
    },
    {
      "type": "object",
      "properties": {
        "kind": {
          "enum": [
            "B"
          ]
        },
        "foo": {
          "type": "string"
        }
      },
      "required": [
        "foo"
      ]
    }
  ]
}

Valid (correctly):

{
  "kind": "A"
}

Should not be valid but is:

{
  "kind": "B"
}

because the B kind takes the default from the A oneOf.