You must use the "set" method to update an entry on empty insert

[eluser]WanWizard[/eluser]
I didn't assume anything, and I didn't mention user input.

I said validate your data. Design unit tests. Run them. A lot of errors come not from user input, but from developers mistakes (which is why user input can be an issue as well btw...)

I don't know what kind of fix you're referring to, but I expect no code will be changed, as this will be cataloged as user-error.
I'm only suggesting to modify the error message to something like "You must specify values to insert a new entry"...