CatServer/patches/net/minecraft/block/BlockFalling.java.patch

--- ../src-base/minecraft/net/minecraft/block/BlockFalling.java
+++ ../src-work/minecraft/net/minecraft/block/BlockFalling.java
@@ -47,7 +47,7 @@
 
     private void checkFallable(World worldIn, BlockPos pos)
     {
-        if (canFallThrough(worldIn.getBlockState(pos.down())) && pos.getY() >= 0)
+        if ((worldIn.isAirBlock(pos.down()) || canFallThrough(worldIn.getBlockState(pos.down()))) && pos.getY() >= 0)
         {
             int i = 32;
 
@@ -62,17 +62,18 @@
             }
             else
             {
+                IBlockState state = worldIn.getBlockState(pos);
                 worldIn.setBlockToAir(pos);
                 BlockPos blockpos;
 
-                for (blockpos = pos.down(); canFallThrough(worldIn.getBlockState(blockpos)) && blockpos.getY() > 0; blockpos = blockpos.down())
+                for (blockpos = pos.down(); (worldIn.isAirBlock(blockpos) || canFallThrough(worldIn.getBlockState(blockpos))) && blockpos.getY() > 0; blockpos = blockpos.down())
                 {
                     ;
                 }
 
                 if (blockpos.getY() > 0)
                 {
-                    worldIn.setBlockState(blockpos.up(), this.getDefaultState());
+                    worldIn.setBlockState(blockpos.up(), state); //Forge: Fix loss of state information during world gen.
                 }
             }
         }