In push mode, the state must be IdleState after resume(), and only
change to ActiveState once it receives some data.
Task-number: QTBUG-50390
Change-Id: Idd08d8826f00d943b3bf750524f811874e010149
Reviewed-by: Pasi Petäjäjärvi <pasi.petajajarvi@theqtcompany.com>