derailing messes up all scheduled breaks

[narthur]

I highly doubt this is in the interest of selling weekends off, since, at least as far as retroratcheting goes, weekends off makes things worse, and I suspect the two issues may be related.

What are the technical reasons for the incompatibility between autoratcheting and weekends off?

I realize the simple reason is that auto-ratcheting advances your road to the left, thereby moving the weekend breaks. (Does this also happen for manually-added breaks?) But why couldn’t the road be moved up instead of to the left? If this currently affects user-scheduled breaks as well as automatic weekend breaks, would this ever be what the user wanted? When I schedule breaks, it’s because I want a break between those specific dates, and even if I retro-ratchet I really don’t want that to cha…