Assertion fails for swipe typing + Undo (Android)

[Alspb]

Is there an existing issue for this?

• [X] I have searched the existing issues

Flutter Quill version

master

Steps to reproduce

1. Open an empty editor window.
2. Enter "Test text" using swipe typing.
3. Press undo.

Expected results

No assertion failures.

Actual results

The following assertion fails:

TextPosition globalToLocalPosition(TextPosition position) {
    assert(container.containsOffset(position.offset),
        'The provided text position is not in the current node');
    return TextPosition(
      offset: position.offset - container.documentOffset,
      affinity: position.affinity,
    );
}

When adding print( 'position.offset=${position.offset}, container.containsOffset(position.offset)=${container.containsOffset(position.offset)}'); before assert it prints

position.offset=4, container.containsOffset(position.offset)=true

several times after Undo was pressed but then for some reason it prints

position.offset=5, container.containsOffset(position.offset)=false

and then the assert statement fails.

Code sample

Code sample

[Paste your code here]

Screenshots or Video

Assert swipe typing undo.webm

Logs

Logs

[Paste your logs here]