Comment # 2 on bug 1020210 from Stefan Seyfried

the --replace option's functionality got lost with commit

commit 4a065a10945c72c985e254ff1ef13df188f3e11e
Author: Nick Schermer <nick@xfce.org>
Date:   Sat Jan 5 21:20:28 2013 +0100

    Use GDbus for communication.

(since xfce-4.11.0)

You could try to use "--disable-server" instead of "--replace" in your
workaround, which might work with current xfce4-appfinder.

I'm closing the old bug as duplicate of this one.