I have a git branch that continually gets 'recreated' with an alternating letter case every time I perform a 'git pull'. Assuming the branch name is 'a' (or 'A' for all I know), one 'git pull' will produce the line:

```
* [new branch]      a       -> origin/a

```

And then the next 'git pull' will produce:

```
* [new branch]      A       -> origin/A

```

This never stops. I don't know how the branch got created (or what it is for) as someone else created it.

How do I tame this branch and make it stop doing this?