Bukkit

What steps will reproduce the problem?
1. Plant big tree
2. Chop it down.

What is the expected output? What do you see instead?
* You expect all logs to pop.
- Instead, you get two kinds of logs: the normal logs, and the horizontal logs that are unusable in crafting.

What version of the product are you using?
Latest.

Do you have an error log of what happened?
No need.

Please provide any additional information below.