Description of problem: libibus.so is owned by both ibus-libs and ibus-devel: it should only be owned by ibus-devel.
Fixed in ibus-1.1.0.20090423-3
ibus-1.1.0.20090423-3.fc11 has been submitted as an update for Fedora 11. http://admin.fedoraproject.org/updates/ibus-1.1.0.20090423-3.fc11
ibus-1.1.0.20090423-3.fc11 has been pushed to the Fedora 11 stable repository. If problems still persist, please make note of it in this bug report.