P: Spot Removal synchronization offset on vertical (Portrait) HDR merged images

There is a persistent bug when synchronizing "Spot Removal" (Heal/Clone) adjustments across images that involve HDR merges in vertical orientation. The adjustment coordinates are not being mapped correctly between standard RAW/DNG files and the DNG files generated by Lightroom's HDR Merge feature.

Steps to reproduce:

1. Take a series of vertical (portrait orientation) RAW images.

2. Perform an HDR Merge to create a new DNG file.

3. Apply a spot removal adjustment (e.g., to clean sensor dust) on one of the nont merged files.

4. Sync that adjustment to the newly created HDR DNG file.

Expected result: The spot removal should be applied to the exact same visual coordinates in both the source and the target HDR image.

Actual result: In vertical images, the spot removal adjustment is shifted to an incorrect position on the HDR file. This does not happen with horizontal (landscape) images.

Additional notes:

• The issue occurs regardless of the camera brand/model.

• The offset happens both ways: from RAW to HDR and from HDR to other RAW files.

• Standard (non-merged) vertical photos sync correctly; the issue is exclusive to the HDR DNG generation process.