Re: [PATCH v2 7/9] fetch doc: remove "short-cut" section

> It is misleading to mention that <ref> that does not store is to
> fetch the ref into FETCH_HEAD, because a refspec that does store is
> also to fetch the LHS into FETCH_HEAD.  It is doubly misleading to
> list it as part of "short-cut".  <ref> stands for a refspec that has
> it on the LHS with a colon and an empty RHS, and that definition
> should be given at the beginning of the entry where the format is
> defined.
> 
> Tentatively remove this misleading description, which leaves the
> `tag <tag>` as the only true short-hand, so move it at the beginning
> of the entry.