How to set the default application

I tried to change the kibana.defaultAppId to
kibana.defaultAppId: "dashboard" or "dashboard/mysaveddashboard" but it doesnt seem to work, it always loads Discover.

How do i change the default application?

Using Kibana 4.2.0-beta2

Thanks for reporting - I can confirm that this seems to be a problem in 4.2-beta2. Just filed an issue, stay tuned: https://github.com/elastic/kibana/issues/5137