Thanks for pointing that out. I had just gone with the default, but it sounds like MIT is okay? I can't select more than one.
As per the MIT license agreement, in order to re-license the project under GPL, the MIT notice must be maintained. And given 'lovely_santa' failed to satisfy this condition, I'd consider the new license void. I doubt anyone here is going to care either way, but ya I'd say best bet is to stick with the MIT license.