Does a divorce pronounced as "divorced, divorced by three" take effect if the wife was menstruating without the husband's knowledge?

The fatwa adopted by us is that the wife has been divorced three times, and has become irrevocably separated by a major divorce (baynunah kubra). She is not permissible for you unless she marries someone else with genuine desire, and he consummates the marriage with her, and then he divorces her or dies, and her waiting period (iddah) ends. Some scholars, such as Ibn Taymiyyah, hold the view that the divorce of a menstruating woman is not effective, and that uttering the triple divorce counts as a single divorce.