Just now I checked out a topic branch in my working repo:
git checkout server-xprt-switch
and while waiting for it to complete (I just started work and caches were all cold), I ran a
git fetch origin
in another window to update from Linus. The git fetch gave a warning:
remote: Generating pack... remote: Counting objects: 7550 remote: Done counting 12885 objects. remote: Result has 8400 objects. remote: Deltifying 8400 objects... remote: 100% (8400/8400) done Indexing 8400 objects... remote: Total 8400 (delta 7257), reused 5696 (delta 4586) 100% (8400/8400) done Resolving 7257 deltas... 100% (7257/7257) done * refs/remotes/origin/master: fast forward to branch 'master' of * git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 old..new: d85714d..55b70a0 Cannot fetch into the current branch.
Why the warning? Also, afterwards I was left with server-xprt-switch pointing to the tip of the branch I'd just switched from (another miscellaneous topic branch). The working directory was in some completely different state--thanks to a quick reset --hard I don't know what it was. Also, in the reflog for the checked-out branch:
commit bac1e7977eb4781e62cee7f1c7c3d13a9e5d8d74
Reflog: server-xprt-switch@{0} (J. Bruce Fields <bfields@citi.umich.edu>)
Reflog message: fetch origin: Undoing incorrectly fetched HEAD.
Author: J. Bruce Fields <bfields@citi.umich.edu>
Date: Mon Oct 22 12:32:37 2007 -0400
...Why was a fetch into the remote fooling with HEAD or anything under refs/heads/?
--b.