Short description of error
Following T39161. Scaling in edit mode works well with "median" as pivot point but with "individual origins" it breaks.
Exact steps for others to reproduce the error
In attached file:
Scale and choose a vertex with "ctrl" pressed, cube seems to disappear.
To compare, press "G" and choose a vertex for snap, the cube's center is moved as a cube (also individual origins could make all selected verts move to that position making a point instead of a cube?) to that vertex.
Scale with "median" as pivot, it works
So maybe to make it consistent, make "individual origins behave like median.