We have some fresh commentary on BR#2394, the dreaded autoscroll bug, which
might now be reproducible, so I started digging. I really do not understand
much about how the Java Autoscroll interface is supposed to work, but in
ColonyPanel.java / ASingleBuildingPanel.autoscroll():
I have switched ColonyTile to the new production scheme. This change
introduces a slight semantic change. In the past, colony center tiles
had an explicit primary and secondary production, which were handled
slightly differently. Artificial tile improvements applied to the
primary but not to th
