Hello, /etc/default/transmission-daemon settings are obsolete if you use systemd as your default init system. These settings are only valid if you use the sysV-init system. The correct way to modify your settings is to edit /etc/transmission-daemon/settings.json anyway. You can change all desired configuration options there. In my opinion this is not a bug but just the way it is intended by upstream.
Regards, Markus
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