Corruption of branch?

Hello,

I have a repository (which I unfortunately cannot provide access to) which is having some odd things happening with one (and only one) of its branches. This workflow repeats the issue (here `bad_branch` is one of the remotes branches; i.e. `origin/bad_branch`):

(1) clone the repository (2) git checkout `bad_branch`

Basically nothing happens. Nothing is printed and I stay on the master branch. I also checked $? and there is no error code that is set. If I choose any of other branches, it correctly creates a local branch, sets it to track the remote and then switches to the local branch.

It seems like there could be some sort of weird bug in the checkout or possibly somehow some corruption in the actual object tree. From my vantage point, however, the data appears totally fine. For example, in `.git/packed-refs` everything appears normal and if I explicitly checkout the commit IDs directly (i.e. just copy the commit corresponding to refs/remotes/origin/bad_branch and checkout $commit) it checks out fine. If I do this with the bad_branch I get a detached HEAD as expected and git log lists the commits that it should.

This seems a bit odd to me. There's certainly some sort of error somewhere, but it's passing silently. I'm not really sure how to debug this and it's too bad I can't actually link the actual repository. I presume if I have the time I could try compiling git from source and seeing if it still shows up. I tested it on the following two versions of git get the same error:

* 1.9.1 (installed as a package from Linux Mint 17.2 Rafaela)
* 2.1.4 (installed as a package from Debian Jessie 8.2)

Also I should note that the original repository is hosted on Github.

Thanks for any help. Hopefully the fact that I can't provide enough information for others to reproduce the issue isn't too large a bother...

Cheers, Thomas Nyberg