Force re-rendering of comments for changeset hashes
This is the natural follow-up to #342 (closed): all comments in MRs, issues etc (called internally Notes) should be re-rendered to display Mercurial hashes.
Initial experiment shows that simply deleting existing renderings from the DB is enough: they will get regenerated on the fly upon request. That needs to be thoroughly confirmed.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information