Login/pull issue?

Not really sure what to call this, but here is what happened:

I registered account

I created a new public key

I ran "keybase login" and inserted my username and password (from keepass)

I get

```
info: Updated file: /home/USERNAME/.cache/keybase/session.json
error: MPI said 3011 bytes but only got 512
```

I try "keybase pull"

```
error: Unknown signature subpacket: 92
```

The report names only the `keybase login` and `keybase pull` commands and their errors; no source files or tests are identified. Start by reproducing both commands with the reported account and key setup, then trace the client path that handles the MPI and signature errors; done means the failure cause and a verified fix or clear diagnostic are established.

Written by the indexing model from the issue text.