From 8be707388a242bbe651e47d014137c330952f0bb Mon Sep 17 00:00:00 2001
From: Junio C Hamano
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.