I'm able to segfault monero-wallet-rpc and corrupt the wallet files by calling export_outputs then import_outputs with the result. the calls succeed, indicating 0 outputs were imported. but then these errors start appearing when the next transaction is sent. my tests send funds back to the original wallet so it might be something specific to that. otherwise, my build and tests are working on v0.18.0.0

```
2022-08-04 23:38:41.438	W Spent money: 0.000000000000, with tx: <48219a8a2c1534c13b2d79448e79598192829327686f45fdd2fcc04649976c64>
2022-08-04 23:38:41.438	E Invalid index
2022-08-04 23:38:41.438	E Error parsing blocks: Invalid index
2022-08-04 23:38:46.206	E Public key 2788e1c6b262a767ee5bcaeea8da6a560c8e68c8d5f8c46aaf97f8b54e9fd5a2 from received 0.000000600000 output already exists with unspent 0.000000600000 in tx <48219a8a2c1534c13b2d79448e79598192829327686f45fdd2fcc04649976c64>, received output ignored
2022-08-04 23:38:46.208	E Public key c185f909de3c0ef5db4255ed423060c00ccc09ad379f08bc669dfdd820ee0fdd from received 0.000000600000 output already exists with unspent 0.000000600000 in tx <48219a8a2c1534c13b2d79448e79598192829327686f45fdd2fcc04649976c64>, received output ignored
```