Re: [PATCH 04/10] fast-export: avoid dying when filtering by paths and old tags exist

> > Hmm. That's the right thing to do if we're considering the export to be
> > an independent unit. But what if I'm just rewriting a portion of history
> > like:
> >
> >   git fast-export HEAD~5..HEAD | some_filter | git fast-import
> >
> > ? If I have a tag pointing to HEAD~10, will this delete that? Ideally I
> > think it would be left alone.
> 
> A couple things:
>   * This code path only triggers in a very specific case: If a tag is
> requested for export but points to a commit which is filtered out by
> something else (e.g. path limiters and the commit in question didn't
> modify any of the relevant paths), AND the user explicitly specified
> --tag-of-filtered-object=rewrite (so that the tag in question can be
> rewritten to the nearest non-filtered ancestor).