Revert to see if it affects tests

Author: AsafMah

azure-kusto-data/azure/kusto/data/helpers.py

@@ -128,8 +128,8 @@ def parse_datetime(frame, col, force_version: Optional[str] = None):
     else:
         # if frame contains ".", replace "Z" with ".000Z"
         # == False is not a mistake - that's the pandas way to do it
-        contains_dot = frame[col].str.contains("\\.")
-        frame.loc[~contains_dot, col] = frame.loc[~contains_dot, col].str.replace("Z", ".000Z")
+        contains_dot = frame[col].str.contains(".")
+        frame.loc[not contains_dot, col] = frame.loc[not contains_dot, col].str.replace("Z", ".000Z")
     frame[col] = pd.to_datetime(frame[col], errors="coerce", **args)
     return frame[col]