Converting Epub with noteref to any format drops <a ... epub:type="noteref"> in result

[Aspvik]

Explain the problem.
When I convert any epub3 file with footnotes <a ... epub:type="noteref"> to html, pdf or docx the entire <a> element is removed from the body in the resulting file. The actual note itself at the end of the document is present. If I remove the epub:type="noteref"attribute before converting it comes through.

pandoc -o org.html -s -f epub org.epub

FYI: The document starts out as a docx, then we store them as epub internally, and offer pdf exports. So the source epub file is also generated by Pandoc.

Pandoc version?
pandoc 2.17.1.1
Compiled with pandoc-types 1.22.1, texmath 0.12.4, skylighting 0.12.2,
citeproc 0.6.0.1, ipynb 0.2

[jgm]

See #5531.
Can you upload a minimal example we can test with?

[Aspvik]

Original: example.docx

pandoc -o example.epub example.docx
example.epub: EPUB/text/ch00N.xhtml footnotes/note are present.

pandoc -o example.html -s -f epub example.epub
index.html: <a> tag's are missing

I had to zip the example files because of unsupported file formats.
Examples.zip

[jgm]

OK, I see the problem now and have a path to fixing it.

[Aspvik]

Excellent. I built from source now and the issue is resolved. When do you expect this fix to be released?

[jgm]

Really? It's not resolved in my tests.
The change I pushed only adds some warnings.

[Aspvik]

I could see the warnings while converting. Still the <a> tag is present in the final html output.

There is however a new block at the end which does not seem complete footnotes-end-of-document
example2.html.txt

I omitted the -s for simplicity, but the result is the same.

[jgm]

The problem is that we aren't finding the id in the note table.
Previously we just passed over this without notice. With the change above, we emit a warning and an empty note. So, you'll see the <a> tag but it will link to a blank note. This is because I still haven't fixed the root problem.

[jgm]

I can't tell you when the next release will be. For now you can use a nightly.