problem with extended device edit hist for specific device

[LizzAlice]

[LizzAlice]

• only when accessing it over the device detail page, not over the widget --> because history-list, not history-detail
• content_type should be in kwargs, but it's empty --> look into device view --> device does not have content_type!
• sometimes link to 'device-history', which does not exist
• 'mailhistory-detail' doesn't exist either
• template device_history.html is never used, history_detail.html does the same thing and is used