Bug report

Problem
scaling in DRAW statement seems buggy

Steps
DRAW "bm100,100s4f19g19h19e19"
This draws a closed diamond shape.
Now when the scale is changed to any non-multiple of 4, the shape is no longer closed:
DRAW "bm100,100s5f19g19h19e19"
The funny thing is that the "gap" in the diamond seems to be the same size, no matter what the scale is (as long as it's not a multiple of 4).
Directions "f" and "h" seem to scale OK, but direction "e" and "g" seem off/drifting by 1 pixel (the line is jagged in the middle).
This happens in any graphics mode (screen 1,2,9). I noticed this because some of my old .BAS programs used DRAW with flash fill but the shapes were no longer closed so the result was a paint mess : )

PC-BASIC version: 1.2.14
Operating system version: Win7