Redmine

I am trying to make an API request that obtains all issues within a project that also returns relations, children and journals.

My request is
GET /issues.json?project_id=[id]&include=children,relations,journals

However it only returns the issue data with only relations included. No children or journal info.

If I reduce it to just
GET /issues.json?project_id=[id]&include=children
It only returns the issue data.

Is it possible to have this request with Redmine API? My version of Redmine is 2.0.3

Thanks