How do you work around the lack of rollback?
I have a model, and I changed some early sketch dimensions and due to toponaming issues, a later sketch lost its subshape binder. Because that sketch has no attachment, I can't get the model to recompute at all. Set tip does nothing, suppressing features does nothing, and I can't set a new temporary attachment for the sketch because the model disappears in the attachment editor blanks out the model because it's an old cache.
In any other program I could just roll back the timeline and fix the issue. In FreeCAD I can delete everything from the bottom up until I get to the problem sketch and fix it, but then I lose a lot of work.
How can I get the model to recompute up to the error so I can fix this extremely minor loss of reference geometry?