Re: git submodule of reference with no branch

>
> Hello,
>
> I use Gerrit as a code review platform, there are some events in which
> I would like to review a feature that touches two repositories, one is
> a submodule of the other.
>
> The git module reference is set correctly, but since the change is
> under refs/changes/xxx and not under refs/heads/xxx, git cannot find
> this reference when trying to check out the repository.
>
> I could not find any option to either have an explicit reference
> without a branch or somehow to tweak the configuration to search under
> refs/changes instead of refs/heads.
>
> I understand the branch concept makes sense when updating as usually
> we are following a repository branch stream, however, I do not
> understand what purpose does the branch serve during checkout. The
> checkout should be possible based on the reference regardless of the
> branch.
>
> Does anyone have an idea if it is possible to have a submodule with a
> reference only or tweak git to search a different hierarchy of refs?
>
> Thanks,
> Alon