wireplumber 0.4.11 segfault in libspa-audiomixer.so

While scrubbing through a video, wireplumber crashed:

Sep 09 14:47:19 saga.alfsgard.dk kernel: wireplumber[1575]: segfault at 7f0bc624901c ip 00007f0bb5998dd6 sp 00007f0bb7f391e0 error 4 in libspa-audiomixer.so[7f0bb598d000+17000]

bt from "coredumpctl debug wireplumber":

#0  0x00007f0bb5998dd6 in impl_node_process (object=0x55d97fb841c8) at ../pipewire-0.3.57/spa/plugins/audiomixer/mixer-dsp.c:706
#1  0x00007f0bc5fb4bef in process_node (data=0x55d97fbbd440) at ../pipewire-0.3.57/src/pipewire/impl-node.c:1088
#2  0x00007f0bc5fb3c58 in node_on_fd_events (source=<optimized out>) at ../pipewire-0.3.57/src/pipewire/impl-node.c:1148
#3  0x00007f0bc6268f2e in loop_iterate (object=0x55d97f84e148, timeout=-1) at ../pipewire-0.3.57/spa/plugins/support/loop.c:431
#4  0x00007f0bc5f8e48c in do_loop (user_data=0x55d97f84dff0) at ../pipewire-0.3.57/src/pipewire/data-loop.c:81
#5  0x00007f0bc5c8c6b3 in start_thread (arg=<optimized out>) at pthread_create.c:442
#6  0x00007f0bc5d11810 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:100