An issue of fact arises (1) upon material allegation in the petition denied by the answer; (2) upon a setoff or counterclaim presented in the answer and denied in the reply; and (3) upon material new matter in the answer or reply which shall be considered as controverted by the opposite party without further pleading.
(1) upon material allegation in the petition denied by the answer;
(2) upon a setoff or counterclaim presented in the answer and denied in the reply; and
(3) upon material new matter in the answer or reply which shall be considered as controverted by the opposite party without further pleading.