Sorting subsets of objects broken for Django 4.2?

I am using a sorting_filters tuple to filter subsets of objects. This was working fine previously, and I suspect it stopped working when I upgraded to Django 4 (though I haven't fully checked that).

The error I see is

`Cannot resolve keyword 'sort_filter' into field.`

And debug shows

`filters {'sort_filter': '0'}`
`request `

at line 60 in `changelist_view` of django-admin-sortable/adminsortable/admin.py.

It looks to me like the `sort_filter` in the querystring should **not** be parsed into `filters`. This is done in the `get_querystring_filters` method which already ignores keys `IGNORED_PARAMS` and `PAGE_VAR`. By also ignoring `sort_filter` and `e` (which can also get in there). My code is working again.

I hope this is useful and allows someone to spot the correct quick fix.