You can teleport out of worldborder with /tp but you can't place a block with /setblock
Environment
Windows 8 64 Bit, Java 7 32 Bit
You can teleport out of worldborder with /tp but you can't place a block with /setblock
Windows 8 64 Bit, Java 7 32 Bit
Confirmed for 14w21b
But probably intended, at least that you can't place blocks