Don't emit model reset on completing a VisualDataModel.

Don't emit model reset on completing a VisualDataModel.

The views try and retain their current state as much as possible on
a reset which prevents the current item being set to a valid item as
would happen if the VisualDataModel was completed before the view.

Change-Id: I593a850aeeb58846ab500f193487db4033e26399
Reviewed-by: Bea Lam <bea.lam@nokia.com>