fix system clean so that it uses proper validation for dynamic interfaces
fix system clean so that it uses proper validation for dynamic interfaces

OSU-Net/cyder,drkitty/cyder,akeym/cyder,drkitty/cyder,OSU-Net/cyder,akeym/cyder,drkitty/cyder,akeym/cyder,akeym/cyder,drkitty/cyder,OSU-Net/cyder,OSU-Net/cyder