**System Information**
Arch Linux (x86-64)
nVidia Geforce GTX 670
**Blender Version**
Broken: 2.69.11 70924a7
Worked: -
**Short description of error**
In the mesh which is modified by specific modifiers(Mirror, Armature), the axis of the vertex generated by subdivide will be random sometimes.
**Exact steps for others to reproduce the error**
Open {F79065}. Subdivide the selected edge. Move the vertex generated to right. The vertex will move to left.