End portal placer can duplicate block & break nether roof's bedrock v.0.8.4

[ghost]

Block duplication:

Any block you step on is used to fill the 5x5x3 area under the player feet allowing block duplication. However, tile entity aren't clone so it can't clone inventories but it can still be used for resources duplication (ore, machine, ...).
Using a worthless block such as cobble or cracked sand or leaving the gaps empty should fix the issue.

Bedrock breaking:

Every block in the 5x5x2 area around the player are destroy including bedrock. As said in the title, it can be used to dig a hole through the bed rock and reach the nether roof. (Don't really know what you would do on the nether roof but, neh, still a bug).
Requiring a empty space or a maximum harvest value for the blocks replaced should fix the issue.

[jriwanek]

Bedrock breaking should be fixed as of 0.8.5, is the block duplication issue still occurring?