I will investigate further thanks for reporting this.
#1: I will try this in my VM. This might take some back and forth with you on this, if it does I'll contact you for some more information.
#2: I should be able to get this reproduced and fixed easily by creating many sites to replicate that list behavior.
Just noticed your new issue, I'd create a separate thread for that. That way I can keep this one about the 2 installer issues.