Basically in this new snapshot the wipping vines, when placed one in the block above the last one, starts a new wipping vine chain (I'll explain myself better now).

So, the ending wipping vine appears above the one that was the last one in a wipping vine chain IF it's placed anywhere above this block.

What I expected to happen was...:
As any other placing of wipping vines in the middle of a chain, I expected it to break all of the wipping vines below the just placed block.

What actually happened was...:
Instead. It puts the block like it was the end of the chain and it leaves the one that was the end before. If you put more vines below this left block it will start another chain ignoring that it ends on another wipping vine instead of a block

Steps to Reproduce:
1. Put a chain of wipping vines one below the other with a minimum of 2
2. In the wipping vine above the end of the chain put another wipping vine
3. By these two steps you should see two unclimbable weeping vine ends together (of course any other vine that is not the end stays climbable as always)