version 2.2.6 gives Warning: Operand of null-aware operation '??' has type 'Widget' which excludes null.

../../../src/flutter/.pub-cache/hosted/pub.dartlang.org/reorderable_grid_view-2.2.6/lib/src/drag_info.dart:150:12: Warning: Operand of null-aware operation '??' has type 'Widget' which excludes null.
 - 'Widget' is from 'package:flutter/src/widgets/framework.dart' ('../../../src/flutter/packages/flutter/lib/src/widgets/framework.dart').
    return rst ?? Container();

my Flutter Doctor gives,

 [✓] Flutter (Channel stable, 2.10.4, on macOS 12.6.6 21G646 darwin-x64, locale en-PK)
    • Flutter version 2.10.4 at /Users/macbookpro/src/flutter
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    • Framework revision c860cba910 (1 year, 4 months ago), 2022-03-25 00:23:12 -0500
    • Engine revision 57d3bac3dd
    • Dart version 2.16.2
    • DevTools version 2.9.2

[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.0)
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    • Platform android-33, build-tools 33.0.0
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    • Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)

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• No issues found!

huhuang03 / reorderable_grid_view

version 2.2.6 gives Warning: Operand of null-aware operation '??' has type 'Widget' which excludes null. #68