[MERGE] Fix non-rich to rich-root fetch

[Ian Clatworthy]

Aaron Bentley wrote:

> Whoops, forgot to remove versionedfile.

Thanks. Just some very minor comment tweaks to do while merging please.

bb:tweak



> +        # Limit to revision present in the versionedfile

s/revision/revisions/

> +    def do_fetch_order_test(self, first, second):
...
> +    def test_fetch_order_AB(self):
> +        """See do_test"""
> +        self.do_fetch_order_test('A', 'B')
> +
> +    def test_fetch_order_BA(self):
> +        """See do_test"""
> +        self.do_fetch_order_test('B', 'A')

s/See do_test/See do_fetch_order_test/ * 2.

Ian C.