tdf#119802 LibreOffice crashes when I save multiple times in a row

regression from
    commit c2452e52f644649723df10e3cd6bbd48d6bafb49
    loplugin:useuniqueptr in SfxDispatcher_Impl

Change-Id: Ia6e097c72e8571540c9cbd1512aedd85e4c2433e
Reviewed-on: https://gerrit.libreoffice.org/60395
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
diff --git a/sfx2/source/control/dispatch.cxx b/sfx2/source/control/dispatch.cxx
index f590aae6..2b39a7df 100644
--- a/sfx2/source/control/dispatch.cxx
+++ b/sfx2/source/control/dispatch.cxx
@@ -1957,7 +1957,7 @@ void SfxDispatcher::Lock( bool bLock )
    if ( !bLock )
    {
        for(size_t i = 0; i < xImp->aReqArr.size(); ++i)
            xImp->xPoster->Post(xImp->aReqArr[i].get());
            xImp->xPoster->Post(xImp->aReqArr[i].release());
        xImp->aReqArr.clear();
    }
}