codex suggestions

Author: roberto-bayardo

storage/src/index/storage.rs

@@ -167,6 +167,7 @@ impl<V: Eq + Send + Sync, E: IndexEntry<V>> CursorTrait for Cursor<'_, V, E> {
                 let entry_record = self.entry.as_mut().unwrap().get_mut();
                 entry_record.value = v;
                 entry_record.next = None;
+                self.prev = None;
                 self.current = Some(Self::record_ptr(entry_record));
                 self.state = State::Done;
             }
@@ -182,6 +183,7 @@ impl<V: Eq + Send + Sync, E: IndexEntry<V>> CursorTrait for Cursor<'_, V, E> {
                     }));
                     Self::record_ptr(last_record.next.as_deref_mut().unwrap())
                 };
+                self.prev = last;
                 self.current = Some(inserted);
                 self.state = State::Done;
             }