Re: git push tags

> On Mon, Oct 29, 2012 at 10:58:07AM +0100, Michael Haggerty wrote:
>
>> I agree with you that it is too easy to create chaos by changing tags in
>> a published repository and that git should do more to prevent this from
>> happening without explicit user forcing.  The fact that git internally
>> handles tags similarly to other references is IMO an excuse for the
>> current behavior, but not a justification.
>
> I would have expected git to at least complain about updating an
> annotated tag with another annotated tag. But it actually uses the same
> fast-forward rule, just on the pointed-to commits. So a fast-forward
> annotated re-tag will throw away the old tag object completely. Which
> seems a bit crazy to me.
>
> It seems like a no-brainer to me that annotated tags should not replace
> each other without a force, no matter where in the refs hierarchy they
> go.
>
> For lightweight tags, I think it's more gray. They are just pointers
> into history. Some projects may use them to tag immutable official
> versions, but I also see them used as shared bookmarks. Requiring "-f"
> may make the latter use more annoying. On the other hand, bookmark tags
> tend not to be pushed, or if they are, it is part of a mirror-like
> backup which should be forcing all updates anyway.