[Tagging] Sorting waterway relations?

[Joseph Eisenberg]

When you make or sort a relation of type=waterway, do you check if the
source or mouth of the river is first on the list of ways?

Another user just suggested that the spring/source of the waterway
should start the list, then the mouth of the river at the ocean (or
where it empties into a larger waterway) should be last. This practice
has not been followed in the areas where I have mapped.

https://wiki.openstreetmap.org/wiki/Talk:Relation:waterway#Sort_order.3F

Is this done in your area?

- Joseph Eisenberg