Well bumping is still useful as the workaround, the utosave, is essential for keeping the nemesis error from killing our fort - and worse, your world.
It is my belief that the broken historical figure files which are the root cause of this error not only harm the fort, but the entire generated world - which stands to reason, as the entire world draws from teh same base pool of historical figures.
this can be especially frustrating for players who, like myself, like to continue to play in a certain generated world fortress after fortress, for continuity. I will forever mourn my line of dwarven monarchs that I managed to track and preserve across four generations and six fortresses..
RIP Durin IV, Underking of the Boats of Shoving.