hi jaise,
the action Edit -> Undo (from the top toolbar area, or Ctr + z) doesn't handle relative zeros.
for action Draw -> Line -> 2 points, you can use command line "undo", which should handle relative zero also. However, this feature seems to be broken currently. I will look into this one.
Thanks a lot for the detailed description.
jaise wrote
Step to reproduce :
1. Start a new drawing
2. Start 2 point line
3. continue drawing 4 lines.
4. Undo last line using ctrl + z.
5. But relative zero not changed.
6. we need to exit from command to set relative position to last line end.