allOf fails to process load properties with external $ref

[EtonDoze]

Here is an example

.
├── models
│   ├── pet.json
│   └── purebred_pet.json (#allOf has properties referring to pet.json)
└── parent.json

parent.json

{
  "swagger": "2.0",
  "info": {
    "title": "flat",
    "version": "1.0.0"
  },
  "definitions": {
    "record": {
      "$ref": "./models/purebred_pet.json"
    }
  }
}

models/pet.json

{
  "type": "object",
  "properties": {
    "color": {
      "type": "string"
    }
  }
}

models/purebred_pet.json

Notice here that pet.json is referenced using relative path which is in the same models folder.

{
  "allOf": [
    {
      "$ref": "./pet.json"
    },
    {
      "type": "object",
      "properties": {
        "breed": {
          "type": "string",
          "sample": "Labrador"
        },
        "mother": {
          "$ref": "./pet.json"
        },
        "siblings": {
          "type": "array",
          "items": {
            "$ref": "./pet.json"
          }
        }
      }
    }
  ]
}

Issue: parser fails with error Unable to load RELATIVE ref: ./pet.json. This happens because the pet.json under the properties is resolved RELATIVE to parent.json instead of purebred_pet.json.
I expect parser needs to resolve pet.json w.r.t. to the origin i.e. purebred_pet.json

I have already found a fix for this issue and PR is on its way.

Related to Issue #616 which only fixed the reference in the parent section of allOf. This issue is about references in the child or properties section of allOf construct.

Attn: @gracekarina

[EtonDoze]

Fixed via pull #621.

This should resolve other open issues related to allOf but I haven't had a chance to verify them yet.