Fix L0_backend_python (triton-inference-server#4207)

* Fix L0_backend_python

* Review edit

qa/L0_backend_python/python_unittest.py

@@ -56,9 +56,12 @@ def test_python_unittest(self):
 
         if model_name == 'bls' or model_name == 'bls_memory' or model_name == 'bls_memory_async':
             # For these tests, the memory region size will be grown. Because of
-            # this we need to use the shared memory probe only on the second
+            # this we need to use the shared memory probe only on the later
             # call so that the probe can detect the leak correctly.
             self._run_unittest(model_name)
+
+            # [FIXME] See DLIS-3684
+            self._run_unittest(model_name)
             with self._shm_leak_detector.Probe() as shm_probe:
                 self._run_unittest(model_name)
         else: