REST API Repository Permissions Groups Format

Hi,
i encountered a bug in the fisheye rest api.
URL: /rest-service-fecru/admin/repositories/reponame/permissions/groups
Method: GET
expected json:

{"start":0,"limit":1000,"lastPage":true,"size":3,"values":[{"name":"GroupA"},{"name":"GroupB"}]}

actual json:

{"start":0,"limit":1000,"lastPage":true,"size":2,"values":["GroupA","GroupB"]}

reference doc:
https://docs.atlassian.com/fisheye-crucible/3.10.3/wadl/fecru.html#rest-service-fecru:admin:repositories:name:permissions:groups

Thank you,
Sven