jonathantredway

**Describe the bug** When `versionBranches` has a value in `.autorc` and `"version"` is set to `"independent"` in `lerna.json`, the version produced [here](https://github.com/intuit/auto/blob/43dad64aba18628711efdbea06b5581e2a77e276/packages/core/src/auto.ts#L464-L466) is an empty string (from [this ternary](https://github.com/intuit/auto/blob/43dad64aba18628711efdbea06b5581e2a77e276/plugins/npm/src/index.ts#L303-L306)), causing...