PHP Notice

Helo,

Could you check for a conflict?

Here is the line firing the notice: https://github.com/polylang/polylang/blob/3.2.5/admin/admin-static-pages.php#L55

This line is part of a function hooked to the filter use_block_editor_for_post. See https://github.com/polylang/polylang/blob/3.2.5/admin/admin-static-pages.php#L30

This filter is coming from WordPress which passes a WP_Post object as shown in https://github.com/WordPress/WordPress/blob/6.0.2/wp-admin/includes/post.php#L2175

If we get something else than a WP_Post in our function, I suppose that this could come from a 3rd party. This should also fire the same notice at https://github.com/WordPress/WordPress/blob/6.0.2/wp-admin/includes/post.php#L2165