Social Interactions search bar does not stay selected when switching tabs, although the cursor remains

The bug

When switching tabs within the Social Interactions menu with the search bar selected, the cursor remains, but typing does nothing, as the field is not selected anymore.

How to reproduce

1. Open a world and open to LAN
2. Open the Social Interactions menu (default key: p)
3. Click on the search bar, so that an underscore cursor is shown
4. Change to the 'Hidden' tab
5. Notice how the search bar cursor is still shown
6. Try typing something, and notice that nothing happens