Does the Fajr prayer become void if the Imam makes two mistakes in other than Al-Fatiha and the mistakes are not corrected?

The Imam's error in parts of the prayer other than Al-Fatihah does not invalidate his prayer nor that of the congregants, even if the congregants do not correct him. However, if the error alters the meaning, the congregant must correct him. If the error does not corrupt the meaning, then there is no harm in the congregant correcting him or not.