[bug] preventOnFilter not working

[davidalejandroaguilar]

Describe the bug When using preventOnFilter={false} to manually handle cancelling dragging, the event is always cancelled.

To Reproduce

1. Create a sortable list with preventOnFilter={false} and filter="li"
2. Add an empty onFilter handler.
3. Try moving your li element.

Expected behavior Expected the element to be draggable until I preventDefault within the onFilter handler.

Information react-sortable = ^2.0.11 react = ^16.13.1