gistfile1.txt

It should only create the TileEntity once, however it seems to create it twice.
These are the stacktraces that show up after placing down a door.

First one:
at com.zixiken.dimdoors.blocks.BlockDimDoorBase.createTileEntity(BlockDimDoorBase.java:70) ~[BlockDimDoorBase.class:?]
	at net.minecraft.world.chunk.Chunk.setBlockState(Chunk.java:666) ~[Chunk.class:?]
	at net.minecraft.world.World.setBlockState(World.java:384) ~[World.class:?]
	at net.minecraft.item.ItemDoor.placeDoor(ItemDoor.java:89) ~[ItemDoor.class:?]
	at com.zixiken.dimdoors.items.ItemDoorBase.placeDoorOnBlock(ItemDoorBase.java:122) ~[ItemDoorBase.class:?]
	at com.zixiken.dimdoors.items.ItemDoorBase.tryToPlaceDoor(ItemDoorBase.java:89) ~[ItemDoorBase.class:?]
	at com.zixiken.dimdoors.EventHookContainer.onPlayerEvent(EventHookContainer.java:17) ~[EventHookContainer.class:?]
  [and some more]

Second one:
at com.zixiken.dimdoors.blocks.BlockDimDoorBase.createTileEntity(BlockDimDoorBase.java:73) ~[BlockDimDoorBase.class:?]
	at net.minecraft.world.chunk.Chunk.setBlockState(Chunk.java:666) ~[Chunk.class:?]
	at net.minecraft.world.World.setBlockState(World.java:384) ~[World.class:?]
	at net.minecraft.client.multiplayer.WorldClient.invalidateRegionAndSetBlock(WorldClient.java:317) ~[WorldClient.class:?]
	at net.minecraft.client.network.NetHandlerPlayClient.handleMultiBlockChange(NetHandlerPlayClient.java:770) ~[NetHandlerPlayClient.class:?]
	at net.minecraft.network.play.server.SPacketMultiBlockChange.processPacket(SPacketMultiBlockChange.java:70) ~[SPacketMultiBlockChange.class:?]
	at net.minecraft.network.play.server.SPacketMultiBlockChange.processPacket(SPacketMultiBlockChange.java:15) ~[SPacketMultiBlockChange.class:?]
	at net.minecraft.network.PacketThreadUtil$1.run(PacketThreadUtil.java:15) ~[PacketThreadUtil$1.class:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_111]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_111]
	at net.minecraft.util.Util.runTask(Util.java:25) ~[Util.class:?]