child-child target branch name shows name from child-parent branch at target branch selection

Example:
- Main-Branch-1.34-Working-Branch
  - Child-Parent-Branch-1.33
    - Child-Branch-1.33-Customer

AutoMerge shows "Child-Parent-Branch-1.33" twice at target branch selection. It should use the name "Child-Branch-1.33-Customer" instead to differ the two branches.

I am using Visual Studio 2015 Update 1.
