Save cache from memory

Author: bouwew

plugwise_usb/network/__init__.py

@@ -568,6 +568,7 @@ async def energy_reset_request(self, mac: str) -> None:
         if self._cache_enabled:
             node_cache = NodeCache(mac, "")
             node_cache.update_state(CACHE_ENERGY_COLLECTION, "")
+            await node_cache.save_cache()
 
     async def set_energy_intervals(
         self, mac: str, consumption: int, production: int