OpenAPI v2 converter - Two identical schemas are not equals

Hello,
first, thank you very much for this tool.

I'm trying to parse two equivalent schemas, one in swagger 2.0, the other in openapi 3.0 :
swagger 2.0 : https://github.com/OAI/OpenAPI-Specification/blob/master/examples/v2.0/yaml/petstore.yaml
openapi 3.0 : https://github.com/OAI/OpenAPI-Specification/blob/master/examples/v3.0/petstore.yaml

I'm using this dependencies :

        <dependency>
            <groupId>io.swagger.parser.v3</groupId>
            <artifactId>swagger-parser-v3</artifactId>
            <version>2.0.1</version>
        </dependency>
        <dependency>
            <groupId>io.swagger.parser.v3</groupId>
            <artifactId>swagger-parser-v2-converter</artifactId>
            <version>2.0.1</version>
        </dependency>

But it seems that the two OpenAPI are not equals.
For example, in POST /pets operation, query parameters limit are differents :
the swagger 2.0 parameter class is io.swagger.v3.oas.models.parameters.Parameter but the openapi 3.0 parameter class is io.swagger.v3.oas.models.parameters.QueryParameter.
And there is same kind of problem with Schemas : ObjectSchema vs Schema.

It is a normal behavior ?

Start with the swagger-parser-v2-converter 2.0.1 conversion of the linked Swagger 2.0 and OpenAPI 3.0 petstore examples. Compare the POST /pets limit parameter and schema model classes, including Parameter versus QueryParameter and ObjectSchema versus Schema. Done means establishing whether these type differences are expected or require consistent output, with a regression test if behavior should change.