Dear Assaf,
It should not be updating the super when you change the profile. The only time it should change the supers is if you reran the Calculate Super tool again or Import supers. If you already have the supers done and edited, you may have to reassign them to the corridor, but it should do this automatically. Can you confirm your exact workflow so that support can review and determine if it's a bug? I could not reproduce your problem with your steps above. Thanks.
Regards,
Lou