Default implementation is not using Vector but List instead

[sjoerdmulder]

According to the documentation (which explicitly says When a message is parsed from bytes) the default implementation for repeated fields is a Vector[T]

This is indeed true when parsing from bytes, but when constructing a new message from the Generated classes (without parsing) the underlying implementation is a List. Please see the following example:

message Event {
  repeated string ids = 1;
}

Will generated code something like:

final case class Event(
    ids: _root_.scala.Seq[_root_.scala.Predef.String] = _root_.scala.Seq.empty,
    unknownFields: _root_.scalapb.UnknownFieldSet = _root_.scalapb.UnknownFieldSet.empty
    ) extends scalapb.GeneratedMessage with scalapb.lenses.Updatable[Event]

But the _root_.scala.Seq.empty is a scala.collection.immutable.Seq which uses List as delegate by default, see also the following screenshot that compares a serialize / parsed object with the live object:

Is it possible to make the default implementation a Vector? This should also apply then to them methods like clearIds that now do copy(ids = _root_.scala.Seq.empty). But the signature should still expose Seq[T]

final case class Event(
    ids: _root_.scala.Seq[_root_.scala.Predef.String] = _root_.scala.Vector.empty,
    unknownFields: _root_.scalapb.UnknownFieldSet = _root_.scalapb.UnknownFieldSet.empty
    ) extends scalapb.GeneratedMessage with scalapb.lenses.Updatable[Event]

I know it's possible to set the collection_type option but that changes the whole signature. I want to expose the Seq as interface but the implementation should be a Vector