public void UpdateChangedItems(BacklogItem[] changedItems)
{
if (isDisposed)
return;
if (changedItems == null || Item == null)
return;
BacklogItem changedItem = changedItems.SingleOrDefault(i => i.BacklogItemUId == Item.BacklogItemUId);
if(changedItem==null)
return;
changedItem.Project = Item.Project;
changedItem.SyncPlannedHoursAndRoles();
Item = changedItem;
}