When breaking the double_fern, the animation on the last frame shows a tall flower as opposed to the fern. I can't get a screenshot due to the timing issues, but I did take a picture of one of the ferns for clarification.
Environment
Windows 8.1, Up1
Java 1.7.0_65 64bit
AMD Radeon HD 6700M Series (6770M in Dynamic Mode with Intel HD 3000)
4.4.12874 Compatability Profile Context 14.100.0.0
Duplicate of MC-53439 - If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.