Reading the Records of Sin: Biography of Empress Zhang Xiaokang

During the reign of Emperor Renzong of the Song Dynasty, after the death of Concubine Li Chen, she was promoted to the queen mother (although it was done after the death of Liu), but during the reign of Emperor Wu Zong, no action was taken, but those who deceived the public with evil talk were beheaded. Does this also mean that Empress Zhang did not give birth to a child through surrogacy?