XFA Not honoring blank value for choiceList

[JDziurlaj]

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

• Web browser and its version: Firefox 89.0
• Operating system and its version: Windows 10 10.0.19043.1052
• PDF.js version: commit 5d251a3
• Is a browser extension: No

Steps to reproduce the problem:

1. Enable XFA support
2. Open form

What is the expected behavior? (add screenshot)
SmartDoc Client dropdown list (choiceList) should be blank.

What went wrong? (add screenshot)
SmartDoc Client dropdown list (choiceList) defaults to first item/text
Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):

[symtalha14]

Can you please assign this to me?

[calixteman]

Sorry it's already fixed by:
1de133a

[symtalha14]

Ohh, I saw it open

[calixteman]

It's because there is bug here too: https://bugzilla.mozilla.org/show_bug.cgi?id=1718241

[schmitch]

actually I still have a xfa pdf where it renders incorrect. sadly I can't share it. (Firefox 93 macOS and PDF.JS 2.10.377 and 2.11.338).
sadly we also have no way of creating these, but the document was created with Adobe LiveCycle Designer 8.0.

[calixteman]

@schmitch, if it's possible, could you uncompress the pdf using qpdf (see https://github.com/qpdf/qpdf/releases):

qpdf --stream-data=uncompress your.pdf another.pdf

then you can open the resulting pdf in a text editor and replace confidential stuff with some XXX (e.g. replace foobar by XXXXXX (same number of letters)).

[schmitch]

@calixteman unfortunatly the pdf is so big, that this is basically a non-option. we are still awaiting a response from our customer to have a more simple pdf which can reproduce the issue.

[calixteman]

Some people already sent me some pdfs on my pro email (I'm a mozilla employee), so you can send it to me if you want (calixte AT my company com).

[schmitch]

ok I will, I just wait for the clearing