Does $anchor creates new scope for JSON Pointer references?

[flaksp]

Schema example with blog post that have recursive comments tree:

{
  "$id": "https://example.com/BlogPost",
  "type": "object",
  "properties": {
    "comments": {
      "type": "array",
      "items": { "$ref": "#comment" }
    }
  },
  "$defs": {
    "comment": {
      "$anchor": "comment",
      "type": "object",
      "properties": {
        "text": { "type": "string" },
        "replies": {
          "type": "array",
          "items": { "$ref": "#" }
        }
      }
    }
  }
}

The question is at "items": { "$ref": "#" } line: will it reference to the https://example.com/BlogPost#comment schema or to the https://example.com/BlogPost schema?

It seems like it should reference to the https://example.com/BlogPost schema, but I am not sure 🤔

[handrews]

It references https://example.com/BlogPost. The base URI is set by $id and is https://example.com/BlogPost so the "$ref": "#" resolves to "$ref": "https://example.com/BlogPost#". $anchor does not change the base URI at all, because base URIs are absolute-URIs (with a scheme and without a fragment).