Issue description
SItuation:

What I want:

What CoI says:

Expected behavior
Ever since the restrictions on mining/dumping got more restrictive, I am struggling with work arounds. I liked the more liberal rules before.
However, this one is a plain bug, there is two slopes possible without any offset to other designations at any corner.
Game version
v0.4.13 (148)
Attachments
Invalid.save
Files not imported: Invalid.save