Custom error builder is not added to spec.yml

[inkhey]

Packages versions :

hapic==0.64
apispec==1.0.0b5
apispec-hapic-marshmallow==0.2
apispec-marshmallow-advanced==0.3

Using custom error schema, in Tracim, this way:

    context = PyramidContext(
        configurator=configurator,
        default_error_builder=ErrorSchema(),
        debug=app_config.DEBUG,
    )

i get lot of error like theses in swagger ui view:

Resolver error at paths./api/v2/auth/password/reset/modify.post.responses.400.schema.$ref
Could not resolve reference because of: Could not resolve pointer: /definitions/ErrorSchema does not exist in document
Resolver error at paths./api/v2/auth/password/reset/request.post.responses.400.schema.$ref
Could not resolve reference because of: Could not resolve pointer: /definitions/ErrorSchema does not exist in document
Resolver error at paths./api/v2/auth/password/reset/token/check.post.responses.400.schema.$ref
Could not resolve reference because of: Could not resolve pointer: /definitions/ErrorSchema does not exist in document

This issue doesnt happened with older version :

apispec-hapic-marshmallow==0.2
apispec-marshmallow-advanced==0.3
apispec==1.0.0b5
hapic[marshmallow]==0.62