"Edit Server Info" window does not focus "Server Name" text field automatically

The bug

When adding a new server entry ("Add Server" button) or editing an existing one ("Edit" button), the "Server Name" text field does not immediately have focus, though the cursor is blinking in it and pressing TAB ↹ switches to the "Server Address" field.

How to reproduce

1. Open the "Multiplayer" server list
2. Click "Add Server"
3. Try to type a server name
   The cursor is blinking in the "Server Name" text field, but you cannot type in it

Code analysis

Code analysis by null in this comment.