`generateCircle` is using sort.Sort, which is not guaranteed to be stable

[spybdai]

Hashring.generateCircle() is using sort.Sort(data Interface) to sort sortedkeys, but this function is not guaranteed to be stable.
Is this a potential risk that, with some very edge cases, (for example, Hashring.AddNode or Hashring.RemoveNode is called, which invokes Hashring.generateCircle,) a range of keys will be mapped to a different node?