SDK: Race condition with photo:applyDevelopPreset() and catalog:updateAISettings()

If a plugin calls catalog:updateAISettings() immediately after photo:applyDevelopPreset(), the application of the preset is ignored. This bug was introduced in LR 15.3, likely with the background processing of AI commands.

To reproduce on LR 15.3 / Mac OS 26.4.1:

1. Import the attached preset “_Update Bug.xmp”.

2. Put the attached file “updateaisettings-bug.txt” into the LR Scripts folder.

3. Go to Develop with a test photo.

4. Do Scripts > updateaisettings-bug. Observe that Exposure is not changed (incorrect -- it should change to 4).

5. Apply the preset “_Update Bug”. Observe that Exposure changes to 4 (correct).

A workaround is to call LrTasks.sleep (0.1) before calling catalog:updateAISettings().