problems upgrading grub in debian sid

[Carlos Ble]

Hello, 
Yesterday I upgrade my Debian Sid as I do every month. Some packages ask
me for overwrite config file installing new version from mainteiners,
but grub doesnt ask, it just overwrite menu.lst file destroying my
config. It is a very big problem for lots of users. Can you add this
question in dpkg-configure step in grub upgrade?.
Thank you