Fix #418: Json name of fields of record in single union case field
Fix #418: Json name of fields of record in single union case field

intellifactory/websharper,Tarmil/websharper,Tarmil/websharper,Tarmil/websharper,intellifactory/websharper,intellifactory/websharper,intellifactory/websharper,Tarmil/websharper