mission-center 0.6.2: new icons installed but icon cache not updated

>>> Installing (5 of 5) sys-apps/mission-center-0.6.2::xarblu-overlay * Updating GSettings schemas ... [ ok ] * QA Notice: new icons were found installed but icon cache * has not been updated: * /usr/share/icons/hicolor/scalable/apps/io.missioncenter.MissionCenter.svg * /usr/share/icons/hicolor/symbolic/apps/io.missioncenter.MissionCenter-symbolic.svg * Please make sure to call xdg_icon_cache_update() * in pkg_postinst() and pkg_postrm() phases of appropriate pkgs.