Any methods to show wires in texture paint WHILE face selection masking is enabled? Strangely, wires are not drawn on the masked selection (yes, the very selection you've masked off and are trying to paint).  Does anyone have a reasonable workaround for this behavior?

Edit mode: faces selected to mask.  "Wire" and "Draw all edges" checked:



Texture paint mode: Face selection masking disabled:



Texture paint mode: Face selection masking enabled (wires are not drawn on the masked faces):
I have used this technique for a long time now. Make a square texture with a colored border, I make mine with transparent center square and a blue outer rim. On the object to be painted, assign a new uv map and unwrap it, reset it so that it is all faces overlapped as a square. set the texture to use this second uv map, and set the main texture as the active painting slot. I set the square texture to 'Multiply' instead of Mix, and I use GLSL to make sure I see the effect of the texture over the main color texture. I am including a screen shot to show that the texture simulates the wireframe you want and works while you are using face selection masking.Here is the texture