LoadFromFile sorts the refrenced schema in alphabetical order

[sheikhasim]

I have a multi directory schema structure and using $ref to refrence in respective files.
Then i'm using the openapi3 loader to load the parent spec and using internalizeRefs to resolve $ref s.
While this works fine but the schema parameters are getting sorted in alphabetical order in the parsed schema.
example:
defined schema:

`User:

type: object
properties:
username:
type: string
first_name:
type: string
last_name:
type: string
email:
type: string
format: email
enabled:
type: boolean
roles:
type: array
items:
$ref: "#/userRole"
attribute_key:
type: string`

Parsed schema :
```
User:
properties:
attribute_key:
type: string
email:
format: email
type: string
enabled:
type: boolean
first_name:
type: string
last_name:
type: string
roles:
items:
$ref: '#/components/schemas/userRole'
type: array
username:
type: string`

`func LoadOpenAPISpec(version string) (*openapi3.T, error) {

	loader := openapi3.NewLoader()
	loader.IsExternalRefsAllowed = true
	mainSpecPath := fmt.Sprintf(mainSpecPath, version)
	mainSpec, err := loader.LoadFromFile(mainSpecPath)
	if err != nil {
		return nil, err
	}

	mainSpec.InternalizeRefs(context.Background(), nil)
	println("loaded")

	return mainSpec, nil
}`

[sheikhasim]

Looks like whole parsed schema is being sorted alphabetically.
Any help here ?