Exactly, take the example of the red shifted ROTJ frames.

Correcting both frames indidually removes the red cast:

However, for the second frame the delibirate blue cast is also removed. Assuming the red cast is similar for the entire film, I can build a color restoration model based on the first frame, and use it to correct the second frame:

Now, the red cast is removed, but the delibirate blue cast is retained. In practise it is better to use a frame closer to the second frame for constructing the color restoration model, but you get the idea.