Hello Mark,

On 23 Nov 2015, at 12:04, Marc Strapetz <marc.strap...@syntevo.com> wrote:

> There is a strange "branch --set-upstream-to" failure for "clones" which 
> haven't been created using "git clone" but constructed using "git init", "git 
> remote add" and "git fetch".
> 
> Following script first creates a "main" repository and then constructs the 
> clone. Finally, in the clone branches origin/1 and origin/2 will be present, 
> however it's not possible to invoke "git branch --set-upstream-to" for 
> origin/2 (it works fine for origin/1).
> 
> I guess the behavior is related to following line in .git/config:
> 
> fetch = refs/heads/1:refs/remotes/origin/1
> 
> However, I don't understand what's the problem for Git here? Definitely the 
> error "starting point 'origin/2' is not a branch" is wrong.
> 

That is indeed the issue. The configuration which is stored in the 
configuration is a remote+branch pair. If there is no fetch refspec configured 
which would create the ‘origin/2’ remote-tracking branch, the command does not 
know which remote and branch that would correspond to.

If you had ‘refs/heads/2:refs/remotes/origin/2’ then it would know, but other 
remote-tracking branches (e.g. ‘origin/3’) would still have an unknown source.

The error message is indeed bogus; it’s likely one of the functions assuming 
how it’s going to be used.

   cmn

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