Fix #1191
Fix #1191

Make sure children of any object that were not orphaned are assigned
new ids

minesense/VisTrails,VisTrails/VisTrails,VisTrails/VisTrails,VisTrails/VisTrails,VisTrails/VisTrails,minesense/VisTrails,minesense/VisTrails,minesense/VisTrails,VisTrails/VisTrails,minesense/VisTrails