[0.40]bug/exploit upgrading buildings

[KySoto]

i discovered with my training dummys that i can start building them and put no materials in them and upgrade them to mk2's and it automaticly finishes it to 50% and puts 5 materials in it ( as if i had already finished the mk1). from what i can tell it works by the building being started before the mk2 version was researched so when the mk2 version comes out you can just upgrade.