pulseaudio-qubes places module-vchan-sink.so in /usr/lib/pulse-13.99 instead of /usr/lib/pulse-13.99.1 causing no audio on the ubuntu 20.04 template

[asharp]

Qubes OS version
4.0

Affected component(s) or functionality
qubes-builder

Brief summary
By default the built Ubuntu template doesn't have working sound. This appears to be due to module-vchan-sink.so being placed in /lib/pulse-13.99/modules by the package pulseaudio-qubes rather than /lib/pulse-13.99.1/modules with the rest of the pulseaudio modules. Moving it to /lib/pulse-13.99.1/modules in the template fixes the problem and audio then works.

I have noticed that even after moving the file, rarely pulseaudio still crashes on startup. Manually starting with pulseaudio --start -n --file=/etc/pulse/qubes-default.pa --exit-idle-time=-1 does fix audio though.

How Reproducible
100%

To Reproduce

Steps to reproduce the behavior:

1. Build template
2. Get no audio
3. Move the file
4. Get audio

Expected behavior
Working audio

Actual behavior
Not working audio

Solutions you've tried
Moving the file.

Relevant documentation you've consulted
There doesn't seem to be documentation on this

Related, non-duplicate issues
This doesn't seem to be related to an existing issue.

[icequbes1]

Confirming this is an issue as well.

gui-agent-linux/Makefile uses $PA_VER_MAJOR_MINOR for installing modules.

It appears Ubuntu uses $PA_VER_FULL for its modules directory.

Fedora 32 (14.0), Debian 10 (12.2), Archlinux (14.0) are all on MAJOR.MINOR versions at the moment.