Are these objects associated to something you have in your home microflow (account, session, another object you can retrieve from the database,...)?
If so, you could try te retrieve them in the home microflow and delete them.
If it needs to be empty by opening this wizard page, you could also always start your wizard with deleting the orphaned objects in memory.
I would still file a support ticket because this seems like a cache bug to me simce refreshing solves the issue.
I think I've found it! I remember something about the “storage” of objects which are not commited but are used in an association. In my case I did have an association with another object. Therefor, when I use the home button, the association was set but the object used in the association was deleted. I think this is the reason that it is shown if we do not have a refresh. Refreshing it makes it all reset as it should do.
Solved it :-)
I'll have a go with the ticket. I just checked that I create an empty object without refreshing it in the client. When going back using home it is still there. Refresh makes it go away.
Keep you posted!