[Acroform] Field not correctly saved in the xfa datasets

[calixteman]

Attach (recommended) or Link to PDF file here:
pptc153.pdf

Configuration:

• Web browser and its version: Firefox nightly
• Operating system and its version: Windows 11

Steps to reproduce the problem:

1. Open the pdf
2. Add something in Surname field (1st one on the 1st page)
3. Save the pdf
4. Open it in Acrobat

What is the expected behavior? (add screenshot)
The field must contain something.

What went wrong? (add screenshot)
It's empty.

[calixteman]

The pdf contains both xfa and acroform.
In pdf.js we only render the acroform but the data are saved in the xfa datasets.
In order to find the XML node where to save the value we use a path but this path is partial (we don't use the parent name, grand-parent name, ...), hence if several fields has the same name we don't select the correct one.