Follower and boundary handle scale outside Leader but not inside

[matthew-carroll]

With the Follower offset, as well as the boundary behavior, we get the expected result when a scale is applied outside the Leader:

Transform.scale(
  scale: 3,
  child: Leader(
    link: _anchor,
    recalculateGlobalOffset: widget.recalculateGlobalOffset,
    child: Container(width: 25, height: 25, color: Colors.red),
  ),
)

However, we don't get the expected result when the scale is applied between the Leader and the content:

Leader(
  link: _anchor,
  recalculateGlobalOffset: widget.recalculateGlobalOffset,
  child: Transform.scale(
    scale: 3,
    child: Container(width: 25, height: 25, color: Colors.red),
  ),
)

Both of the above widget trees should produce the same result.

When this is fixed, write a golden test that runs both of these trees through the same golden image to make sure they produce the same result.