Missing check/bug in new vm wizard

[sgmihai]

Custom, next, select Generate VM, back, next, next, TCG, enter name, select cpu type 'e', next ,next, no network ->
Sender: bool VM_Wizard_Window::Create_New_VM()
Message: Cannot Find QEMU System ID!

I guess there should be a check there to not be able to get to the last step with empty system type. Although if you go pick KVM instead of TCG it creates the vm.