formattedspinbuttons should send value-changed on losing focus, but this is sufficient for this use case and safe to backport Change-Id: Ie0cf5ab22152d95169dc5579423a4173be678a33 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/106051 Tested-by: Jenkins Reviewed-by: Caolán McNamara <caolanm@redhat.com>