tdf#92434 - dispose the table contents.

fix issue from: 6d0c89123f353aed80d3a8a08ef5cd1ffaa1eea9

Change-Id: Ia5b7bb91c366ecbbb3111d6f5239d5360640ca2d
Reviewed-on: https://gerrit.libreoffice.org/16893
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>
Tested-by: Michael Meeks <michael.meeks@collabora.com>
diff --git a/dbaccess/source/ui/querydesign/JoinTableView.cxx b/dbaccess/source/ui/querydesign/JoinTableView.cxx
index 1586cd9..58973fc 100644
--- a/dbaccess/source/ui/querydesign/JoinTableView.cxx
+++ b/dbaccess/source/ui/querydesign/JoinTableView.cxx
@@ -1537,7 +1537,7 @@ void OJoinTableView::clearLayoutInformation()
    {
        if ( aIter->second )
            aIter->second->clearListBox();
        aIter->second = NULL;
        aIter->second.disposeAndClear();
    }

    m_aTableMap.clear();