rust-status: don't trigger dirstate v1 rewrite when only v2 data is changed
The assumption that we need to rewrite (or append to) the dirstate if the
ignore pattern hash has changed or if any cached directory mtimes have changed
is only valid when using dirstate-v2. In dirstate-v1, neither of these things
are written to disk.
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----