The bug
After clicking "Save and Quit to Title" in the game menu to leave a world, the game window turns black for a quick second before the main menu appears.
Update: This also happens when entering/leaving a dimension.
Environment
Microsoft Windows [Version 10.0.15063]
Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz, 3.40 GHz
64-bit operating system, x64-based processor; 8.00 GB RAM
NVIDIA GeForce GT 630; GeForce Game Ready Driver Version 385.28
Java 1.8.0_144-b01 (64-bit)
Duplicate of MC-122051