fix(logger): ensure default keys are added when cleared

Author: heitorlessa

aws_lambda_powertools/logging/formatter.py

@@ -187,6 +187,7 @@ def remove_keys(self, keys: Iterable[str]):
 
     def clear_state(self):
         self.log_format = dict.fromkeys(self.log_record_order)
+        self.log_format.update(**self._build_default_keys())
 
     @staticmethod
     def _build_default_keys():

tests/functional/test_logger.py

@@ -675,10 +675,12 @@ def handler(event, context):
 
     # THEN all standard keys should be available as usual
     handler({}, lambda_context)
+    handler({}, lambda_context)
 
-    log = capture_logging_output(stdout)
+    first_log, second_log = capture_multiple_logging_statements_output(stdout)
     for key in standard_keys:
-        assert key in log
+        assert key in first_log
+        assert key in second_log
 
 
 def test_clear_state_keeps_exception_keys(lambda_context, stdout, service_name):