Cannot mazimise window after leaving fullscreen mode

The Maximize button is disabled (greyed out) after returning from full-screen mode. This affects regardless of whether Minecraft was started originally in windowed or fullscreen.

Reproduction steps:
1. Press F11 anywhere in Minecraft to enter full-screen mode.
2. Press F11 again in Minecraft to exit full-screen mode.
3. Attempt to maximise the game window.