xfce4-appfinder fails to start and hangs when ussing ibus in FreeBSD

Hi,

I'm posting this as FreeBSD ports committer maintaining the XFCE ports.

A user reported the issue here:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264801

I tested in a virtual machine and simply installing and enabling ibus causes the issue to appear.

The program hangs indefinitely without showing a window when launched.

When launching the software with "truss" to try to observe it, I was trying to understand where it was hanging, it starts without problems. So I'm thinking it deadlocks in some part related to ibus.

I don't know how to further investigate this.

If someone could give indications on how to debug it or some further testing I'll try to execute it.