Eagerly remove MQTT entities on reload (#118213)

homeassistant/components/mqtt/__init__.py

@@ -38,6 +38,7 @@ from homeassistant.helpers.service import async_register_admin_service
 from homeassistant.helpers.typing import ConfigType
 from homeassistant.loader import async_get_integration, async_get_loaded_integration
 from homeassistant.setup import SetupPhases, async_pause_setup
+from homeassistant.util.async_ import create_eager_task
 
 # Loading the config flow file will register the flow
 from . import debug_info, discovery
@@ -393,9 +394,9 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         # Reload the modern yaml platforms
         mqtt_platforms = async_get_platforms(hass, DOMAIN)
         tasks = [
-            entity.async_remove()
+            create_eager_task(entity.async_remove())
             for mqtt_platform in mqtt_platforms
-            for entity in mqtt_platform.entities.values()
+            for entity in list(mqtt_platform.entities.values())
             if getattr(entity, "_discovery_data", None) is None
             and mqtt_platform.config_entry
             and mqtt_platform.domain in RELOADABLE_PLATFORMS