DatetimeIndex.normalize doesn't clear ns field #5461
Description
import pandas as pd import numpy as np didx = pd.DatetimeIndex(np.array([1380585623454345752, 1380585612343234312]).astype("datetime64[ns]")) didx.normalize() the output is:
<class 'pandas.tseries.index.DatetimeIndex'> [2013-10-01 00:00:00.000000752, 2013-10-01 00:00:00.000000312] Length: 2, Freq: None, Timezone: None