Footprint editor angle restricted drag (crtl plus drag) puts points off grid

[Rene Poeschl]

In the footprint editor if one drags the endpoint of a line (example courtyard outline) when using angle restricting mode (crtl plus drag) the new point is nearly always off grid.

I noticed this behavior in both the current nightly and version 5.0 (both on linux. 5.0 on ubuntu 16.04 and nightly on fedora 28)

This is even true if one drags a point that is on grid in horizontal or vertical direction. (so along a grid line)
It would be a very helpful feature if the points could stay on grid at least if dragged in one of the orthogonal directions. (maybe even if dragged along a 45 degree angle as well. But that is a direction that is not used so often)

This creates problems like in this pull request of mine: https://github.com/KiCad/kicad-footprints/pull/885

[KiCad Janitor (kicad-janitor)]

Fixed in revision e7c51a6a6c2ab90812e42cbf8e5dfb0f77a54709
https://git.launchpad.net/kicad/patch/?id=e7c51a6a6c2ab90812e42cbf8e5dfb0f77a54709