This is because of mishandling of overplot by papco_plot, which sets up the axes for papco_lineplot. This problem is corrected and fixes committed, but this may have side effects so I wanted an entry in the bugs database.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Logged In: YES
user_id=1578913
Originator: YES
This is because of mishandling of overplot by papco_plot, which sets up the axes for papco_lineplot. This problem is corrected and fixes committed, but this may have side effects so I wanted an entry in the bugs database.