Unfortunately whoever told you that does not understand how the IRS e-file computer works or has out of date information.. One a SSN has been used it will NOT get reset until next tax season for ANY reason. That is to prevent ID theft and fraud - they used to reset after amending but that policy was changed about 3 years ago.
Not that it would make much difference anyway because an amended return will take about 6 months or longer to process. (Normally take about 3-4 months but because of COVID and millions of unprocessed tax returns they are taking 6 months or longer now.) Amend now but do not expect for it to be processed before October.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
