else { /* TARG == left */
    STRLEN llen;
    SvGETMAGIC(left);		/* or mg_get(left) may happen here */
    if (!SvOK(TARG)) {
        if (left == right && ckWARN(WARN_UNINITIALIZED))
            report_uninit(right);
        sv_setpvn(left, "", 0);
    }
    (void)SvPV_nomg_const(left, llen);   /* Needed to set UTF8 flag */
    lbyte = !DO_UTF8(left);
    if (IN_BYTES)
        SvUTF8_off(TARG);
}