fdo#81486:custom property with the same name as Document Property not imported
Change-Id: Ieb9cba7b8969787140d6db3b77765e3a15bf89e1
Reviewed-on: https://gerrit.libreoffice.org/10381
Reviewed-by: Michael Stahl <mstahl@redhat.com>
Tested-by: Michael Stahl <mstahl@redhat.com>