Add a small test to prevent regressions. Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230724082032.66864-12-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>