DiffService.FindChangedPaths: return blob OID information
In v16.9, Gitaly adds the old_blob_id
and new_blob_id
fields to the returned ChangedPaths
message.
Spotted by the upstream merge process as heptapod#1431 (closed).
This is not exposed in the Rails app (current head of development) as of this writing. Still, better to do it if easy in the same cycle.