When any elector is registered, his or her name, residence, and residence telephone number, if furnished, shall be entered on the stub attached to the original affidavit. If for any cause the affidavit is spoiled in the course of execution or a mistake is made, the affidavit shall not be destroyed, but the name of the elector for whom it was intended, with his or her residence, shall be entered on the stub as in other cases, and the stubs and affidavits each marked with the word “spoiled.”