walters added a new comment to an issue you are following:
``
Oh, now I remember the main reason I switched CAHC over to do-release-tags - it was making
static delta management easier. We want static deltas between the last release commit to
the current. If one does a "retag", the information "what was the previous
release commit" isn't stored in the repo. Which means a command like `ostree
static-delta generate fedora-atomic/25/x86_64/docker-host` will do the wrong thing.
Now obviously, we could keep this information out-of-band (JSON file, database, or a
fedora-atomic/25/x86_64/previous-stable/docker-host ref), and explicitly do `ostree
static-delta generate --from PREVIOUS --to fedora-atomic/25/x86_64/docker-host`, but
it's messier. And static deltas won't be the only tool that wants to know what
the previous stable commit was. Hence I'd still push for do-release-tags.
``
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https://pagure.io/releng/issue/6545