Win7 64 bit, 16 igs RAM, an AMD 7xxx GPU, third gen i7 processor
Broken: hash 5693337
**Short description of error**
In certain cases, subdividing two edges at once can create zero-area faces, even though they are cleanly separated and are attached to valid geometry. That case appears to be when there's an Ngon and both edges border it.
**Exact steps for others to reproduce the error**
Open the .blend file and subdivide what is selected