Game mode can create empty items with no statements which get deleted

[john cummings]

So I found this issue by accident when helping to import a database of castle https://www.wikidata.org/wiki/Wikidata:Data_Import_Hub#Gatehouse_Gazetteer_(Wales)

Game mode creates new items as soon as you press 'new item', meaning that if you don't specify a default type in the import form for Mix n' Match you create lots of blank items which get deleted and it messes up QuickStatements.