git-fetch: document automatic tag following.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/Documentation/git-fetch.txt b/Documentation/git-fetch.txt
index 7ecf2408d6fe060ccf5d179760abe59b708571f0..5fbeab76b7214f871865eaefd5dbe744036676b0 100644 (file)
--- a/Documentation/git-fetch.txt
+++ b/Documentation/git-fetch.txt
@@ -20,6 +20,14 @@ The ref names and their object names of fetched refs are stored
 in `.git/FETCH_HEAD`.  This information is left for a later merge
 operation done by "git merge".
 
+When <refspec> stores the fetched result in tracking branches,
+the tags that point at these branches are automatically
+followed.  This is done by first fetching from the remote using
+the given <refspec>s, and if the repository has objects that are
+pointed by remote tags that it does not yet have, then fetch
+those missing tags.  If the other end has tags that point at
+branches you are not interested in, you will not get them.
+
 
 OPTIONS
 -------