Re: Creating remote branch called HEAD corrupts remote clones

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On Thursday, January 20, 2011 10:32:40 Felipe Contreras wrote:
> Hi,
> 
> On Thu, Jan 20, 2011 at 1:14 PM, Stephen Kelly <steveire@xxxxxxxxx> wrote:
> > Stephen Kelly wrote:
> >> On Friday we had an issue where a developer pushed a branch called
> >> HEAD to the remote server. The result was that other developers could
> >> not pull or push.
[...]
>  Which version of git?
>  Which kind of network transport was used?
>  Is this reproducible?

FWIW, here is a quick demonstration of at least one problem with having a 
branch called HEAD. You can make it and push it fine, but when cloning, you
don't get it.

#!/bin/bash
git init --bare origin.git
git clone origin.git wc1
cd wc1
git commit --allow-empty -m "Initial rev"
git checkout -b HEAD
git commit --allow-empty -m "Make HEAD branch"
git push --all
cd ..
git clone origin.git wc2
diff -u <(cd wc1; git branch -a) <(cd wc2; git branch -a)
diff -u <(cd wc1; git log --all) <(cd wc2; git log --all)

If I do the following from wc2 I can get the branch manually:

git pull origin refs/heads/HEAD:HEAD

I haven't played with it enough to see what other problems might arise.
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