Steps to reproduce the issue

Use the \Joomla\CMS\Table\Table::save inside your Model

This function is meant abstract all the functions for saving an item (bind, check, store).
In case it gets as 2nd parameter the ordering field name ($orderingFilter), it is supposed to re-order the item, based on the existing rows in the table.

Expected result

Give a proper/incremental ordering number

Actual result

No number.

System information (as much as possible)

Joomla 4.0 alpha6

Additional comments

Actual function that does the re-ordering
\Joomla\CMS\Table\Table::reorder