The seed text field is not selected after clicking the 'World' tab

The seed text field is not automatically selected after clicking the "World" tab at the top center of the screen. This is inconsistent with the world name field, which is selected after clicking "Create New World".

To reproduce

1. Navigate to the Singleplayer menu, and select "Create New World"
2. Move to the 'World' screen via the button at the top center of the screen

Expected behavior

The "Seed for the world generator" field would be selected automatically.

Observed behavior

No button or field is selected by default.

Notes:

As noted in this comment, the world creation screen has since changed, so the report has been updated to reflect the most up to date behavior.