Some short-cut notations are also supported.
-* For backward compatibility, `tag` is almost ignored;
- it just makes the following parameter <tag> to mean a
- refspec `refs/tags/<tag>:refs/tags/<tag>`.
+* `tag <tag>` means the same as `refs/tags/<tag>:refs/tags/<tag>`;
+ used with pull or fetch, it requests fetching everything up to
* A parameter <ref> without a colon is equivalent to
<ref>: when pulling/fetching, and <ref>`:`<ref> when
pushing. That is, do not store it locally if