...with recent GCC 16 trunk. Introduced with
1a2926a995 "use std::move when popping stuff off
stacks" but which doesn't make sense here where std::priority_queue's top()
unconditionally returns a const reference (unlike std::stack's top()).
Change-Id: I408920220e3b7ffe775fa87f9edbfdc7721058db
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/138732
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>