Break the recursion when fetching the next page
Break the recursion when fetching the next page

The unified inbox uses individual inbox pages to build the next unified
page. When there isn't enough data availalbe for the next unified page,
individual pages are fetched, and the action is re-dispatched
afterwards.

This can lead to an endless recursion. A new parameter breaks this.

Signed-off-by: Christoph Wurst <7abde52c298496fa169fb750f91f213a282142af@winzerhof-wurst.at>

kingjan1999/mail,kingjan1999/mail,kingjan1999/mail