1  G0 X5 (This line should be skipped)
 2  
 3  M442 (First remapped command sets up problem)
 4  G1 X2Y0Z0 F40 (SET START LINE HERE, line after remapped command)
 5  X3 (Moves that will be truncated)
 6  Y4
 7  X5
 8  Y6
 9  M442 (Second remapped command should truncate previous moves)
10  
11  m2