Is this a bug? TextBuilder.GenerateGlyphs(text, path, textOptions) returns some emtpy paths in IPathCollection

[mshakurov]

The "Samples\ImageSharp\DrawingTextAlongAPath\Program.cs" file contains the code for drawing text along the Bezier curve.
There is a call:
// Let's generate the text as a set of vectors drawn along the path var glyphs = TextBuilder.GenerateGlyphs(text, path, textOptions);
The resulting collection glyphs contains paths of the ComplexPolygon type, which have Bounds equal to RectangleF.Empty, although in reality no path is located at the beginning and has zero dimensions.
Why do I assume this is a bug? Because, because of these empty paths, the Bounds collection property is equal to RectangleF.Empty.