`Prefix::keys` method never fails

[ShadoySV]

Keys are just skipped if deserializating of its key or value fails.
That's because de_fn returns Result which implements Iterator as well and, being iterated, returns nothing in case of error value

cw-plus/packages/storage-plus/src/prefix.rs

Line 188 in b2a1561

.flat_map(move |kv| (de_fn)(store, &pk_name, kv).map(|(k, _)| Ok(k)));

Is it desired behavior?

[maurolacy]

Good point. I think this arose because of backwards compatibility when implementing key deserialisation on top of the existing API. I agree this would be good to change / address.

[ShadoySV]

Thank you