The provisions of this act shall not apply to warrants issued prior to the year one thousand eight hundred and ninety-four, and nothing in this act shall release any bondsman or security. This act shall not apply to cities having special laws on this subject. No collector or the sureties thereof who take advantage of this act shall be permitted to plead the statute of limitations in any action brought to recover the amount of any duplicate or warrant so extended or renewed. No statute of limitations shall prevent the collection of any tax for which the warrants and powers and authorities of the said tax collectors have been so, as aforesaid, extended, renewed and revived.
72 P.S. § 5627.3