Short description of error
the result of proportional editing in "connected" mode is not working correctly, the scaling pattern is not round, it has edges.
Exact steps for others to reproduce the error
add a plane, subdivide it (20 - 30 times)
enable proportional editing (normal mode) and scale one face.
now change the mode to connected and scale another face (this time it looks different)
i am not sure if it is really a bug, but it seems to be one for me