git remote branches oddies

Hi git list,

could someone take a look please since I'm not
sure if that is right thing I'm doing with git ;)

I'm tracking a few linux kernel repos. Here is my git config:

--- git config ---
[core]
repositoryformatversion = 0
filemode = true
bare = false
logallrefupdates = true
[remote "origin"]
url = git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
fetch = +refs/heads/*:refs/remotes/origin/*
[branch "master"]
remote = origin
merge = refs/heads/master
[remote "x86"]

        url = git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
        fetch = +refs/heads/*:refs/remotes/x86/*

[remote "tip"]
url = git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git
fetch = +refs/heads/*:refs/remotes/tip/*
[gui]

        geometry = 1037x445+260+116 207 192

[remote "udf"]
url = git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6.git
fetch = +refs/heads/*:refs/remotes/udf/*
------------------

By typing 'git remote update' I've got the following today

--- git remote update log ---
cyrill@cvg linux-2.6.git $ git remote update
Updating origin
Updating x86
From git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86
* [new branch] core/futexes -> x86/core/futexes
error: 'refs/remotes/x86/mm' exists; cannot create 'refs/remotes/x86/mm/xen'
* [new branch] mm/xen -> x86/mm/xen
d4abc23..ea71a54 sched-fixes-for-linus -> x86/sched-fixes-for-linus
error: unable to resolve reference refs/remotes/x86/sched/devel: Not a directory
* [new branch] sched/devel -> x86/sched/devel
error: unable to resolve reference refs/remotes/x86/sched/new-API-sched_setscheduler: Not a directory
* [new branch] sched/new-API-sched_setscheduler -> x86/sched/new-API-sched_setscheduler
error: unable to resolve reference refs/remotes/x86/sched/urgent: Not a directory
* [new branch] sched/urgent -> x86/sched/urgent
ffe6e1d..ebb9cfe x86-fixes-for-linus -> x86/x86-fixes-for-linus
error: Could not fetch x86
Updating tip
From git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* [new branch] core/futexes -> tip/core/futexes
d4abc23..ea71a54 sched-fixes-for-linus -> tip/sched-fixes-for-linus
error: unable to resolve reference refs/remotes/tip/sched/devel: Not a directory
* [new branch] sched/devel -> tip/sched/devel
error: unable to resolve reference refs/remotes/tip/sched/new-API-sched_setscheduler: Not a directory
* [new branch] sched/new-API-sched_setscheduler -> tip/sched/new-API-sched_setscheduler
error: unable to resolve reference refs/remotes/tip/sched/urgent: Not a directory
* [new branch] sched/urgent -> tip/sched/urgent
ffe6e1d..ebb9cfe x86-fixes-for-linus -> tip/x86-fixes-for-linus
error: Could not fetch tip
Updating udf
-----------------------------

I've asked Ingo what is happend with -tip tree. He answered:

| hm, this is due to a new 'sched/urgent' and 'sched/devel' branches being | introduced, while the old ones were still around.

If I've recreated git repo from scratch - messages are gone. Not sure how to react on this. Is that normal? (I would _not_ say that such error messages annoying me but somehow a _bit_ unpleasant :-)

Please CC me since I'm not subscribed.
Btw the git I'm using is - git version 1.5.6.6.gd3e97.

- Cyrill -