Enter key not opening selection after navigating tree

Bug Reports
1
  1. Invoke Hook
  2. Use arrow keys to select a pinned bookmark
  3. Press right-arrow to display hooks to that bookmark
  4. Press left-arrow to navigate back
  5. Press enter key.

Expected behaviour: the selected pinned bookmark is launched.

Actual behaviour: the enter key no longer launches the highlighted bookmark, or others you navigate to above and below.

(latest public version)