John Rauser

Possibly related? https://github.com/tidyverts/tsibble/issues/299

I looked into this a little bit, and the problem comes when the arima model object is created. It has a $tsp which has a $range, where the week_start hasn't...

I think range just does something like `c(min(dat$wk), max(dat$wk))`, without propagating the attributes of the object. The code that makes the range at [L402 of arima.R](https://github.com/tidyverts/fable/blob/9b926f8be993594c3ae448b912366aca09ab78d7/R/arima.R#L402) needs to be aware...

Putting this in my code appears to paper over the problem: ``` range.yearweek