tdf#107593 Show the cursor after header/footer delete

Change-Id: I978f088fa700791d48a5a65392f980822ac14bd2
Reviewed-on: https://gerrit.libreoffice.org/69032
Tested-by: Jenkins
Reviewed-by: Heiko Tietze <tietze.heiko@gmail.com>
diff --git a/sw/source/uibase/docvw/HeaderFooterWin.cxx b/sw/source/uibase/docvw/HeaderFooterWin.cxx
index 307704b..2b80b44 100644
--- a/sw/source/uibase/docvw/HeaderFooterWin.cxx
+++ b/sw/source/uibase/docvw/HeaderFooterWin.cxx
@@ -443,6 +443,9 @@ void SwHeaderFooterWin::ExecuteCommand(const OString& rIdent)
    else if (rIdent == "delete")
    {
        rSh.ChangeHeaderOrFooter( rStyleName, m_bIsHeader, false, true );
        if ( IsEmptyHeaderFooter() )
            rSh.ToggleHeaderFooterEdit();
        GrabFocusToDocument();
    }
    else if (rIdent == "insert_pagenumber")
    {