Merging two ways corrupts step_count

[danieldegroot2]

URL

No response

How to reproduce the issue?

Follow-up to #8069

Splitting a way in two results in i.e. step count of 4 => 3+1 / 2+2 depending on the length of the way itself.
However, merging two ways will result in 3+1 => Error (values are not the same), or 2+2 => 2 (merged, values are not summed)
Perhaps summing up the values, or alternatively (prompting to) delete the values (if situation has changed significantly), is better.

See also MarcusWolschon/osmeditor4android#1251 (comment)

Screenshot(s) or anything else?

No response

Which deployed environments do you see the issue in?

Released version at openstreetmap.org/edit

What version numbers does this issue effect?

2.30.4

Which browsers are you seeing this problem on?

Chrome

[1ec5]

A similar issue is merging ways tagged parking:left/right/both:capacity=*. Summing the values sounds reasonable to me, though this assumes that the preexisting split doesn’t correspond to the location of one of the steps being counted twice. Refusing to merge also seems OK, though it would be annoying to the user without clear guidance on how to resolve the conflict.