Subscribing to the same data with "different" fields

I need to subscribe to a document which is already published and pushed to a client.

The first sub is as follows

this.subscribe('users', {}, { fields: { '': 1 }});

The subscription takes query (the first parameter) and options (the second parameter).

When a modal (component) gets opened, the component subscribes to a single user like this.

this.subscribe('users', { _id: userId }, { fields: { profile: 1 }});

The problem is that the rest of the profile does not get sent over to the browser, if I request the rest of the user document, it gets sent over the wire. I guess there is no workaround with my current pub/sub model.