SvgDrawingAnimation ignores fill-rule

[Zabadam]

Right at the beginning of README is "[f]or now, it only renders paths," but I am unsure if it is meant that fill-rule would not be obeyed. Surely my SVG here is comprised of paths and not polygons:

<!--
Just to be sure path directions are irrelevant: fill-rule="evenodd".
To be clear, issue persists with (correct path directions) and "nonzero".
-->
<svg
  xmlns="http://www.w3.org/2000/svg"
  fill-rule="evenodd"
  clip-rule="evenodd"
  viewBox="0 0 1200 1200"
  fill="red"
  stroke="#000"
  stroke-width="35">
    <path d="
      M690 89a517 517 0 0 0-361 30A461 461 0 0 0 73 554c13 371 316 536 580 529s459-255 436-529A519 519 0 0 0 690 89Z
      M508 203c9-1 19 0 28 2 182 47 328 646 142 686-165 36-221-138-262-319-42-180-26-362 92-369Z
    "/>
</svg>

Expected intersection rendering

  runApp(MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: Center(
          child: SvgDrawingAnimation(
            SvgProvider.string(r'<svg xmlns="http://www.w3.org/2000/svg" fill="red" stroke="#000" stroke-width="35" viewBox="0 0 1200 1200"><path d="M690 89a517 517 0 0 0-361 30A461 461 0 0 0 73 554c13 371 316 536 580 529s459-255 436-529A519 519 0 0 0 690 89ZM508 203c9-1 19 0 28 2 182 47 328 646 142 686-165 36-221-138-262-319-42-180-26-362 92-369Z"/></svg>'),
            duration: const Duration(milliseconds: 4000),
            curve: Curves.decelerate,
          ),
        ),
      )));

SvgDrawingAnimation rendering

Just before the outer stroke begins drawing, there is a slight pause.
This could be the inner cavity being "drawn"—just not correctly subtracting from the existing shape.