(So I'll try to implement this)

Issue: Bukkit fires the BlockPlaceEvent before the minecraft server calculates the associated rotation data.
This messes up placing rotatable blocks. The expected data value for the rotation defined in the configuration will not match what Bukkit tells PreciousStones.
Bukkit have marked this issue as Won't Fix, so PS has to work around it.

Here is a short list of rotatable or otherwise data-contaminated blocks that should have data 0 at all times in PS config/database and only ever compared against data 0:

• Chest 54
• Ender Chest 130
• Furnace 61
• Leaves 18 (unset bit 0x4 - the player placed this block bit)
• Note block 25
• Dispenser 23
• Cobble stairs 67
• Oak wood stairs 53
• Brick stairs 108
• Stone brick stairs 109
• Sandstone Stairs 128
• Spruce Wood Stairs 134
• Birch Wood Stairs 135
• Jungle Wood Stairs 136
• Pumpkins 86
• Jack'O'Lanterns 91
• Fence gate 107

Here is a continuation of the above list, but for less popular block choices:

• Piston 33, Sticky Piston 29
• Torch 50
• Ladders 65
• Vines 106
• Trapdoors 96
• Lily Pads 111
• Stone button 77
• Levers 69

I don't think I'm going to get around to this.

• Not going to try unless I can build it locally, and I'm too dumb to figure that out.
• Server I was working on is no fun.