Re: [PATCH 1/2] Allow users to require source branch on git-checkout -b.

> Under my suggestion, the new git-checkout -b (and git-branch)
> would:
> 
>  (0) proceed if there is an explicit branch point specified on
>      the command like, just like now;
> 
>  (1) allow omission of branch-point if the current branch has
>      allowbranchbydefault configuration set as in above.  A new
>      branch is created forking off of the current HEAD;
> 
>  (2) allow omission of branch-point if no branch has such
>      configuration; in other words, existing repositories that
>      do not have the allowbranchbydefault configuration anywhere
>      are not affected.  A new branch is created forking off of
>      the current HEAD;
> 
>  (3) otherwise, it barfs if you do not give an explicit
>      branch-point.
> 
> and a newly created repository that is newbie friendly has one
> such configuration automatically set for 'master' (if created
> with git-init) or whatever the primary branch is (if created
> with git-clone).