# force-attach with single arc and then detach "back to the original state"
# by removing the arc

point_new P1  10 10  2 1
point_new P2  50 50  2 1
point_new P3  80 10  2 1

point_new P8  0  55  2 1
point_new P9  90 55  2 1



2net_new line 1 1  from P8 to P9
2net_new arc 1 1  from P1 ccw P2 to P3
2net_del arc
