I have posted this in github now - and since
have discovered that defaults are not set for successive adds for any fields.
Perhaps this is why the default value feature is only partially implemented??
I must admit I didnt check the multi add functionality either when I built my own default value feature.
The problem here is it could get nasty, how far is it worth going for default values?
One might want to have the default value increment - would need to tell js thats what we want.
OR we might want next index id from the database - we would have to return that inside the ajax/json
form post. But there's no reliable way to get next insert id - should be ok because we should be using auto increment feature of the database and therefor NOT need a default value.
Still bears some thinking as to the best way forward