For a split second after destroying the bottom block of double-tall grass, the top block changes texture into the top section of a peony flower.It isn't game breaking, but it's still there.
Environment
Windows 7 Home Edition x64, Radeon R7 240 GPU, Intel i5-2390T processor Java 1.7.67/1.8.25 under 2GB ram
Duplicate of MC-53439.