Is the prayer of one who recites "ihdina" in Surat Al-Fatihah with a hamzah fathah (ahdina) invalid, and is the prayer of one who prays behind him invalid?

The aforementioned melodic error (laḥn) in Al-Fatihah, such as saying "ahdinā" (أَهْدِنَا) with an open hamza, is considered a clear melodic error (laḥn jalī) that alters the meaning. Some scholars believe that whoever commits this melodic error must repeat their prayer, as must those who prayed behind them. Others, however, (such as the relied-upon view of the Malikis) hold that the prayer is not invalidated by it unless it was done intentionally, and the follower (muqtadī) incurs sin if they find someone else to pray behind. The view of repeating the prayer is more cautious, and it is obligatory to advise the Imam, explaining that this melodic error alters the meaning according to many scholars.