fix(config_flow): F2 — MAC-less zeroconf discovery calls the audited _async_handle_discovery_without_unique_id helper and guards against a same-host duplicate prefill, so re-discovery can't stack entries; the import guard reads entries via the base _async_current_entries helper; TestMacLessDiscoveryF2 pins helper call + one-entry outcome (t32)

tests/test_init.py

@@ -223,6 +223,9 @@ class TestImportStep:
             **kwargs,
         }
         flow.async_abort = lambda **kwargs: {"type": "abort", **kwargs}
+        flow._async_current_entries = lambda: list(
+            hass.config_entries.async_entries()
+        )
         return flow
 
     async def test_ui_configured_host_never_re_seeded(self):