SSO Docusign SP 2028 Cert wasn't renewed but replaced?

It looks like the new SP cert has a different key from the 2026’s. - The pub keys(modulus) are different.
2028 Docusign SSO Self-Signed Certificate

Our IDP (Oracle IDCS) doesn’t allow to import multiple signing certs for an SP. It would have been transparent if the cert was renewed with the same key but it doesn’t seem the case.

I’m thinking that I might as well tell the business team that we need to react after DocuSign has started using the 2028 cert,  but it’d be great if I’ve missed something and anyone can suggest a way to make the transition without an interruption.