[Mod] relpace bar second/microsecond to 0 when force generated, #1815

vnpy/trader/utility.py

@@ -253,6 +253,9 @@ class BarGenerator:
         """
         Generate the bar data and call callback immediately.
         """
+        self.bar.datetime = self.bar.datetime.replace(
+            second=0, microsecond=0
+        )
         self.on_bar(self.bar)
         self.bar = None