fix: Ensured that the lower bound value always have a different sign then the upper one
fix: Ensured that the lower bound value always have a different sign then the upper one

SebastianNiemann/Mantella,SebastianNiemann/Mantella,SebastianNiemann/Mantella,Mantella/Mantella,Mantella/Mantella,Mantella/Mantella