**System Information**
Arch Linux (x86-64)
nVidia Geforce GTX 670
**Blender Version**
Broken: 2.69.11 b5d6f14, 2.69.0
Worked: -
**Short description of error**
In the mesh which is modified by Mirror and Armature, the faces generated by Add Duplicate doesn't move but transforms randomly.
**Exact steps for others to reproduce the error**
Open {F79133}. Add Duplicate(Shift + d) and move mouse.