v1 -> v2 migration tests

[Stephen Finucane]

On Thu, 2017-06-22 at 11:16 +0100, Stephen Finucane wrote:
> However, despite this, Patchwork seems to managing just fine. There's only
> one patch out of series, and that's the one that has been sent as 1/2
> mistakenly. I don't know why this didn't get lumped into the existing series
> but it's correct behavior so meh.

Found it:

  https://github.com/getpatchwork/patchwork/blob/v2.0.0-rc4/patchwork/parser.py
#L915

We actually codify this. Still seems correct.

Stephen