Steps to reproduce:

      Click F3 when viewing a document.
      Use arrow down/up key to navigate the table of contents.

Actual result:

      As soon as a different row is focused, the places dialog is closed unexpectedly.

Expected result:

      An explicit click on the 'Enter' or 'Return' key would be required in order to close the dialog, allowing the table of contents to be keyboard navigable.

Observation:

      Rigorously speaking, keyboard navigation works, but requires holding Ctrl key.