Describe the bug
Whenever you use the mechanical saw mill from Better with Mods to cut Spruce logs, you're given Oak Bark

To Reproduce
Place an Spruce log onto an active sawmill. When the log is cut, you're given oak bark.

Expected behavior
I expected spruce bark to come from sawing Spruce logs.

Screenshots

Info (please complete the following information):

• Modpack Version: 2.77.1
• Server or Singleplayer: Singleplayer
• Version the world was created on: 2.77.1

Additional context
None

Thanks for the report, as of the 2.77.1 update though, the bark item has been made generic for all woodtypes. Now it's just "wood bark", therefore this is working as intended.