Originally discovered in #4152

On a persisted database create this table:
CREATE TABLE t0 (c0 VARCHAR(0) COLLATE AF);
Then after the restart, will give the error:

Error: unable to open database "<name>": Catalog Error: Collation with name af does not exist!

I think I have the ICU extension enabled somehow. That's because AF shows on the collations list at PRAGMA collations;.