Good to know. Last year when I did my tax (got the warning)and posted a question here. I was told to ignore it (I never looked at the actual number to see if it was added to the taxable calculation as you mentioned).
https://ttlc.intuit.com/community/tax-credits-deductions/discussion/retirement-contribution-overpaym...
Edit: I just looked at my 2022 Tax return, that $3000 was not added to the taxable income.
TT
