adding key twice gives error "You need to delete your active key before uploading a new one"

Repo:
- click 'a mystery user with no key'
- select to add my own public key
- do not encrypt private key
- cancel before validating public key
- click 'a mystery user with no key' (2nd time)
- select to generate key, follow steps to generate the key
- select 'done post to keybase'
- see error message and attached image:

ERROR {"status":{"code":908,"desc":"You need to delete your active key before uploading a new one","name":"KEY_NEED_REVOKE"},"csrf_token":"lgHZIDdkYTA0YzdiNWY3YWVlOGJhZDNlYjhkZGQ2MzRkNzAwzlP9wDLOAAFRgMDEIKX2nJWs00qTf3feJ4Irr+8SVPs5IESoprMUmJQUJJO5"}

Suggested fix: if home screen refreshes to remove the 'a mystery user with no key' button after key is created (but not verified) this error will not be hit.


Reproduce the listed key-generation flow, including canceling public-key validation and then generating a key. Start by tracing the home-screen state after key creation but before verification; done means the “a mystery user with no key” action no longer leads to the KEY_NEED_REVOKE error.

Written by the indexing model from the issue text.