[Bug]: incorrect aspect ratio when using Replace with pixel aspect ratio not 1

### What happened?

This is an old bug, I've seen it both on RV and OpenRV for a long time on mac (not sure on other OS's).

Load two exr file sequences, both with pixel aspect ratio 2.
enter on Tools > Raplace. The pixel aspec ratio won't be respected and both plates will be squeezed.

The pixel aspect ratio is identified and show correctly before entering the Replace mode.
Trying to "fix" this behavior on the righ click menu "Image > Pixel aspect ratio" won't work (after entering Replace).

### List all the operating systems versions where this is happening

macOS 12.7

### On what computer hardware is this happening?

mac studio

### Relevant console log output

_No response_

### Environment variables

_No response_

### Extra information

_No response_

### Code of Conduct

- [X] I agree to follow this project's Code of Conduct

Reproduce the issue on macOS 12.7 with two EXR file sequences whose pixel aspect ratio is 2, then enter Tools > Replace and compare the display with the behavior before Replace. Inspect the Replace path and the Image > Pixel aspect ratio control; done means both plates retain the correct pixel aspect ratio while in Replace mode.

Written by the indexing model from the issue text.