[Tagging] Is it possible to have highway=unclassified with ref tag?

[Dave F]

On 06/05/2018 13:28, Philip Barnes wrote:
>
> For unsigned references we use official_ref and prow_ref which will not
> appear on the standard map but can be rendered on more specialised
> maps.

Back in May'15 on Talk-GB there was a discussion about this [1]. 
Highway_authority_ref was proposed as it clarified the origin & enure it 
would be shown on a map if a renderer decided to amalgamate 
'official_ref' with 'ref'. There was also a feeling there could be 
multiple 'official' refs. I've adopted this..

[1] https://lists.openstreetmap.org/pipermail/talk-gb/2015-May/017390.html

DaveF.