Instead of changing any numbers in your 1098's (your lenders send a copy to the IRS which will then have conflicting information), I think this solution is a lot better (and pretty easy to do):
https://ttlc.intuit.com/community/tax-credits-deductions/discussion/re-bug-with-refinance-on-a-large...
It involves revising the mortgage interest worksheet, which is not part of your actual tax return. You will then have the proper mortgage interest deduction, as well as matching numbers in your 1098 forms.
