+
Some short-cut notations are also supported.
+
-* `tag <tag>` means the same as `refs/tags/<tag>:refs/tags/<tag>`;
+* `tag <tag>` means the same as `refs/tags/<tag>:refs/tags/<tag>`;
it requests fetching everything up to the given tag.
* A parameter <ref> without a colon is equivalent to
<ref>: when pulling/fetching, so it merges <ref> into the current