Intermittent api issues

Using the latest docker image, the `git clone` command occasionally fails with the following error:

```
git-remote-keybase error: (1) API network error: Get "https://api-0.core.keybaseapi.com/_/api/1.0/merkle/path.json?c=1&leaf_id=redacted&no_root_sigs=1&poll=10&start_seqno=redacted&tail=redacted": EOF (error 1601)
```

Start by reproducing the intermittent failure with the latest Docker image and the `git clone` command. Investigate the reported `git-remote-keybase` request to `api-0.core.keybaseapi.com` and the EOF error; done means identifying and resolving the cause of the API network failure.

Written by the indexing model from the issue text.