Excess group section showed when no data rows (filtered)

[dant]

1. The DataSource of report have some rows.
2. The report have filer expression and no one row form DS are not matched.
3. The report have not empty detail section.
4. The report have one group section with not empty header.
---

In this case, report ALWAYS SHOW one group band wo detail (field values from last row in DS).
But it must be not showed no one groupdetail because no matched rows!!!
Sorry for my english! :-(

JasperReport 4.5 6.1.0

---

    <field name="IDDAZS" class="java.lang.Integer"/>
    <field name="DTW" class="java.util.Date"/>
    <field name="DBFULL" class="java.lang.Double"/>

    <sortField name="IDDAZS" order="Ascending"/>
    <sortField name="DTW" order="Ascending"/>

    <filterExpression><![CDATA[new Boolean(false)]]></filterExpression>

    <group name="AZS">
        <groupExpression><![CDATA[$F{IDDAZS}]]></groupExpression>
        <groupHeader>
            <band height="13">...some text fields...</band>
        </groupHeader>
    </group>
    <detail>
        <band height="13" splitType="Stretch">... some text fields...</band>
    </detail>