"reuse last entered value" not working for attachment/photos fields

App version 2026.2.0

Description:

form with more than one filed for photos. In our case 2 (say A and B) of them are mandatory.

The user start adding a new (point) feature (id 1) and take the picture for field A, checking the "reuse last entered value" checkbox, then fill the other fields and also take photo for field B.

After finishing id=1 the user surveys another point (id=2): the picture for field A is already in place, as is re-using the one taken previously.

At this point the user syncs edits, no errors.

If someone now syncs on QGIS Desktop sees being downloaded 3 photos, as expected

but now inspecting the data the picture for field A in record id=1 is missing

because simply the file does not exists. Looking at record id=2 is ok

I believe this is a regression, as it used to work ok.