LC_TIME affects mutt's charset value

[Daan van Rossum]

With the following locale variables set
        # env | grep -e LANG -e LC_
        LANG=en_US.UTF-8
        LC_TIME=en_DE.UTF-8
Mutt sets charset to "us-ascii"
        # mutt
        :set &charset ?charset
        charset="us-ascii"

Now, when I do not set LC_TIME mutt sets charset to "utf-8"
        # unset LC_TIME
        # mutt
        :set &charset ?charset
        charset="utf-8"

Is this a bug or a feature?

The reason why I set LC_TIME is because I like the 24h time format.

Thanks, Daan

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