ModelAdmin2 options

There's a bunch of admin options which don't seem to be implemented (resp. don't work as expected) right now – instead of adding a ticket for every single one, I'm trying to summarize my experience with this one (hope that's ok):

Does not work:
- raw_id_fields
- list_display_links
- list_editables
- prepopulated_fields
- date_hierarchy
- radio_fields
- fieldsets

Not working as expected:
- list_display_filters with dates display an input–field instead of links
- If I filter something on the changelist and there are no results, all the filters are gone. The same is true when using the searchfield.
- It would be nice to see what exactly I've filtered

If this is not intended to work, there should be an explanation (hopefully, I'm not missing anything here).

Review the ModelAdmin2 options and the listed changelist and searchfield behaviors, starting with the unsupported options and filtering cases in this issue. First verify which items remain relevant in the current project; done means each behavior is corrected or explicitly documented as unsupported, with the filtering state preserved and visible.

Written by the indexing model from the issue text.