[config_validation] Fix bug with extras on schemas (esphome#7497)

Cossid · Sep 26, 2024 · 21fbbc5 · 21fbbc5
1 parent b61577b
commit 21fbbc5
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/esphome/voluptuous_schema.py b/esphome/voluptuous_schema.py
@@ -226,4 +226,6 @@ def extend(self, *schemas, **kwargs):
         if isinstance(schema, vol.Schema):
             schema = schema.schema
         ret = super().extend(schema, extra=extra)
-        return _Schema(ret.schema, extra=ret.extra, extra_schemas=self._extra_schemas)
+        return _Schema(
+            ret.schema, extra=ret.extra, extra_schemas=self._extra_schemas.copy()
+        )