RFR: 204: git-sync: must fetch before --fast-forward

[Robin Westberg]

On Mon, 16 Dec 2019 10:10:28 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this patch that ensures `git sync --fast-forward` fetches the
> changes from the `to` remote _before_ trying to do "fast forward" merges. This
> is needed because doing a push to a remote ref does not cause that ref to be
> updated.
> 
> Thanks,
> Erik
> 
> ## Testing
> - [x] Manual testing of `git sync --fast-foward`
> - [x] Added a new unit test

Looks good!

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Marked as reviewed by rwestberg (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/331