changed (their) mind, reconsidered
Мы с Томом не передумали.
Tom and I haven't changed our minds.
Have you changed your mind again?
Я считаю, это хорошо, что вы передумали.
I think it's good that you changed your mind.
— Эксперимент 2: Волна (2008)
They changed their minds.
Have you really changed your mind?
С чего это вы вдруг передумали?
Why did you suddenly change your mind?
You haven't changed your mind, have you?