[boskid] Downgrading an inserter confuses the "ALT mode" picture

[hgschmie]

I have an inserter thing that supports filter mode and I want to release a new mod version where it no longer does.

In the old version, the entity_prototype "filter_count" attribute was set to 5. In the new version, the attribute is set to "0".

Now when I load a save from the old version, the entity still shows filtering in "Alt Mode":

Screenshot 2025-01-04 at 15.47.30.png (61.46 KiB) Viewed 544 times

even though the GUI shows that it no longer supports filters:

Screenshot 2025-01-04 at 15.49.25.png (80.95 KiB) Viewed 544 times

For any newly placed entity, "Alt mode" works correctly.

I guess this is a "prototype migration" edge case.

[boskid]

Given that this describes a bug (missing migration to disable "use filters" when inserter is not allowed to use filters anymore) i fixed this for 2.0.29.