UI: After adding a "New Diff", the diff should be automatically opened

[cblichmann]

Steps to reproduce the problem:

Open BinDiff, use Diffs|New Diff to create a new diff What is the expected behavior?

1. The newly added diff should automatically be opened/loaded by the UI.

What went wrong?

One has to double click the new diff in the tree view for it to be loaded.

What version of the product are you using? On what operating system?

BinDiff 7, any OS

Any other comments?

N/A