Comment 6 for bug 1868138

> IMHO broken files

please clarify under what circumstances you think it's appropriate/OK to modify user-config files, breaking them?

because that's what's being done here.

the installer is overwriting the /etc/default/grub file.

> highly unusual abuse of POSIX shell semantics,

horesefeathers

> I do not see a need to support it

ok, that's, then, the issue here.

if that's policy, then that's good to know/understand.
for _that_ there are clear/available solutions.