Prevent scene from restoring unavailable states (#67836)

tests/components/scene/test_init.py

@@ -9,6 +9,7 @@ from homeassistant.const import (
     ATTR_ENTITY_ID,
     ENTITY_MATCH_ALL,
     SERVICE_TURN_ON,
+    STATE_UNAVAILABLE,
     STATE_UNKNOWN,
 )
 from homeassistant.core import State
@@ -177,6 +178,34 @@ async def test_restore_state(hass, entities, enable_custom_integrations):
     assert hass.states.get("scene.test").state == "2021-01-01T23:59:59+00:00"
 
 
+async def test_restore_state_does_not_restore_unavailable(
+    hass, entities, enable_custom_integrations
+):
+    """Test we restore state integration but ignore unavailable."""
+    mock_restore_cache(hass, (State("scene.test", STATE_UNAVAILABLE),))
+
+    light_1, light_2 = await setup_lights(hass, entities)
+
+    assert await async_setup_component(
+        hass,
+        scene.DOMAIN,
+        {
+            "scene": [
+                {
+                    "name": "test",
+                    "entities": {
+                        light_1.entity_id: "on",
+                        light_2.entity_id: "on",
+                    },
+                }
+            ]
+        },
+    )
+    await hass.async_block_till_done()
+
+    assert hass.states.get("scene.test").state == STATE_UNKNOWN
+
+
 async def activate(hass, entity_id=ENTITY_MATCH_ALL):
     """Activate a scene."""
     data = {}