FUNIT_CHGDET
if (fjp->fj_flags & FUNIT_CHGDET)
fjp->fj_flags |= FUNIT_CHGDET;
fjp->fj_flags &= ~FUNIT_CHGDET;
fjp->fj_flags &= ~FUNIT_CHGDET;
if (fjp->fj_flags & FUNIT_CHGDET) {
fjp->fj_flags |= FUNIT_CHGDET;
fjp->fj_flags &= ~FUNIT_CHGDET;
fjp->fj_flags &= ~FUNIT_CHGDET;