If one said the bracha of shehecheyanu on a fruit, thinking that he had not eaten it that season yet, and afterward reminded himself that he had eaten it previously that seasons, is his brachah a Brachah L'vatala?
Do we say that since he had eaten it previously he had no obligation to say the shehecheyanu, so it would be a Brachah L'vatala,
Did the chachamim require the bracha of shehecheyanu to be said when one eats a fruit and has the enjoyment/ happiness of eating a new fruit, which he did have, (since in his mind he was indeed eating a new fruit), and thus his brachah would not be a Brachah L'vatalah?
1- Must he say ברוך שם ...
2- Must he do תשובה ?
3- If someone else who really had not eaten that fruit yet was יוצא with his brachah- Does he have to repeat the brachah? ( בדיעבד one can say the brachah as long as the simcha of the eating is still going on).
4 - הרי את מקודשת לי ע"מ שזה ברכה לבטלה would it be a valid קידושין?
If someone suffers from amnesia, and he has forgotten that he had already eaten this fruit, may we allow him to say Shehecheyanu on it?