Explain in advance

My game only adds mods that do not affect the original content, such as jei, and our server is the original server.
Secondly, the video is only a demonstration. I also tested it in the latest official snapshot version and this bug exists.

English to Google Translate
Hello mojang company
I want to report a bug about big_dripleaf
Generally speaking, when a potion or arrow hits big_dripleaf, it will drop immediately.
In other words, if the player stands on big_dripleaf it will slowly fall.
But if the player stands on top of big_dripleaf and waits until big_dripleaf starts to fall, throw a bottle of potion or arrow at the right time, it will immediately drop down, but it will return to its original condition within half a second. It means that when big_dripleaf starts to fall, if there is something that makes big_dripleaf hang directly to the bottom, it will immediately hang down and restore its original condition within half a second.
However, under normal circumstances, big_dripleaf should hang down for a while and then come up again, but after the above operations, it will come immediately.

I will add the latest snapshot version of the video/picture in a few days, thank you for your understanding

I tested it in version 1.17, but I still found this bug in the latest snapshot version just now. I hope mojang can see it and fix it sooner. Thank you for seeing it here.

I will add the latest snapshot of the original video in a few days. Please note that this feature is done in the original game, not plug-ins and other issues.

The following is the Chinese description：
您好MOJANG公司
我想汇报一个关于big_dripleaf的bug
一般来说药水或箭砸中big_dripleaf时它会立马垂下去。
或者说如果玩家站在上面big_dripleaf它会慢慢的下落。
但是如果玩家站在big_dripleaf上面并且等到big_dripleaf开始下落的时候看准时机丢一瓶药水或者箭它会立马垂下去，但是会在半秒内恢复原来的状况。意思就是当big_dripleaf开始落下去的时候如果有让big_dripleaf直接垂到底的东西它会立刻垂下去并且在半秒内就恢复原来的情况。
然而正常的情况下应该是big_dripleaf垂下去一段时间再上来，可如果经过上述操作它会立马上来。
我是在1.17版本中测试的，但是我刚才在最新快照版本中还是发现了这个bug，希望mojang能早点看到并修复，感谢您能看到这里。