"detached HEAD" not in sidebar

[millerdev]

Steps to reproduce:

• Execute at command line git checkout <commit-hash>
• Refresh GitX

What I saw:

• "detached HEAD" not in sidebar.

Expected to see:

• "detached HEAD" at top of BRANCHES list in sidebar.

The "detached HEAD" item appears as expected when using "Checkout Commit" from the context menu in the commit tree.

GitX version 0.15.1962