Unit not stored in fits output of `time_correction`

Unit gets lost when creating the table from a dictionary:

(Pdb) self.containers["calibration"][0]["time_correction"]
<Quantity [[-1.00016499, -0.62957573, -1.64699936, ..., -0.02552128,
             0.71275139,  0.20087242],
           [-0.96639919, -0.95376587, -2.12562561, ...,  0.00325775,
             0.53034019,  0.46151352]] ns>
(Pdb) self.containers["calibration"][0].as_dict()["time_correction"]
<Quantity [[-1.00016499, -0.62957573, -1.64699936, ..., -0.02552128,
             0.71275139,  0.20087242],
           [-0.96639919, -0.95376587, -2.12562561, ...,  0.00325775,
             0.53034019,  0.46151352]] ns>
(Pdb) Table([self.containers["calibration"][0].as_dict()])["time_correction"]
<Column name='time_correction' dtype='float64' shape=(2, 1855) length=1>
-1.0001649856567383 .. 0.4615135192871094