An Edge Flips When Scaling

Hi,

I’m not sure if this is a bug or a normal behavior but an edge flips when I’m trying to flip
You can see an illustration of the problem here:
https://www.dropbox.com/s/i1x0jk61wom5de7/BLEN10_scale_flipping.mp4?dl=0

As a background, I’m trying to align the edge to the point’s position. If you have better way of doing this, I’m all ears!

Thank you