How do i select one of the overlapping ways? should they exist?

[ivanbranco]

@jiangyi1985

how do i select it in edit mode?

Related answer here:

How to select between overlapping items in iD?

I would select a common node (e.g. Node History: 30377803 | OpenStreetMap), then Ctrl + ↑, then I would select the element from the menu on the left