inconsistent Warning about locale on foreign distro?

[zimoun]

Dear,

I am running Guix on the top of Debian. And I have done the hint
proposed by Guix.
Then e.g. `guix package -A rogue' works as expected. No more warnings.

However, e.g. `guix environment --ad-hoc guile' still warns.
Is it expected?


Thank you for any pointers.


All the best,
simon