GenericExtrinsic object has no attribute is_success

doing `btcli stake transfer`, at the end, after entering correct password, got this error:


```
An unknown error has occurred: ‘GenericExtrinsic’ object has no attribute ‘is_success’
```

with versions:

```
async-substrate-interface==1.5.8
substrate-interface==1.7.11
bittensor==9.12.1
bittensor-cli==9.14.1
bittensor-commit-reveal==0.4.0
bittensor-drand==1.0.0
bittensor-wallet==4.0.0
```