pipewire-jack crashes audacity

Fedora 33, pipewire 0.3.22 (built from the current Fedora branch: see my copr dbenjaminmiller/pipewire, which just rebuilds the current F34 pipewire as a backport to F33), Audacity 2.4.2, Portaudio current as well.

Not present in 0.3.21, but if I have pipewire-jack installed, then launching audacity results in a core dump:

audacity: /builddir/build/BUILD/audacity-minsrc-2.4.2/lib-src/portaudio-v19/src/hostapi/jack/pa_jack.c:706: BuildDeviceList: Assertion `colon - port < jack_client_name_size()' failed.
Aborted (core dumped)

If I uninstall pw-jack, then things work fine (including if I have pipewire-plugin-jack with normal JACK).