**System Information**
Win8 64bit | GTX680
**Blender Version**
Broken: 2.72 a1d80b9
**Short description of error**
Unknown seams appear on normal baking texture. As far as I see, it is more obvious on 8-bit image texture when baking using **Tangent** space.
**Exact steps for others to reproduce the error**
{F114338}
{F114344}
{F114345}