Problem trying to delete Open Office - Libre Office automatically installs

I installed 11.2 with KDE. Noticing how much disk space Open Office takes up, I decided to delete it and try koffice instead. My problem is that when (in Yast) I select Open Office for deletion Yast (or libzypp) automatically decides to install the full libre office suite to “satisfy dependencies”. Is there a way to end up with NEITHER Open Office nor libre office?