tdf#125556 URL fragment leaked from one object..

to another when importing Powerpoint ppt file

regression from
    commit 4245454d0c3d6df2d0e0a75aed6f22f0a26ce3e2
    Date:   Wed Feb 28 15:50:29 2018 +0200
    loplugin:useuniqueptr in SdrPowerPointImport

Change-Id: I5f415dfa1f6125629b9f3be1d799cb596c64c605
Reviewed-on: https://gerrit.libreoffice.org/73606
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
diff --git a/sd/source/filter/ppt/pptin.cxx b/sd/source/filter/ppt/pptin.cxx
index 1e1ba27..793d26e 100644
--- a/sd/source/filter/ppt/pptin.cxx
+++ b/sd/source/filter/ppt/pptin.cxx
@@ -378,9 +378,9 @@

                                    nPropCount /= 6;    // 6 properties per hyperlink

                                    SdHyperlinkEntry aHyperlink;
                                    for ( i = 0; i < nPropCount; i++ )
                                    {
                                        SdHyperlinkEntry aHyperlink;
                                        aHyperlink.nIndex = 0;
                                        aPropItem.ReadUInt32( nType );
                                        if ( nType != VT_I4 )