This happens more often that gets attention.

It's happened to me personally. At a class D airport, I was cleared to land on a lengthy final. There was a student with their CFI, they were on the downwind leg. Controller advised they were #2, following me, and call their base. They read back. I didn't think much of them, as they must still be on the downwind leg and there was no call for their base leg. They wound up cutting me off. The degree of separation was so little I could clearly see the instructor mouthing "OH @&^." I had to take evasive maneuvers. They then sheepishly called they were base turning final. The controller asked where I was, and the student didnt do as instructed.

I had a lengthy, heated, profanity laden conversation with that CFI once on the ground. I also called the FSDO.

Props to the AA crew for keeping cool and being situationally aware.