Disallow swapping to/from a multivalue LIST column type in Tables (not Entity Views)
ALTER TABLE can not handle swapping into a JSON list format out of the box so we have to either modify the user's data before performing a ALTER TABLE (while DDL operations are not backed by a transaction) or create an entirely new row and copy all data over. Since there are no driving use cases for using list columns in Tables, we will revisit this at a later time if requested, but for now we should disable column swapping to/from LIST columns in tables.
Tried scalar->list and list->scalar, error both time.
Verified fixed 298.0-4x/298.0-2x.