Ensure MDBObjectMeta._find_existing() works

Als ik het SimulateRawScience notebook run in combinatie met de Oracle database dan loopt de code hier vast:

 >>> mydetector = Detector()
 >>> mydetectorlist = [mydetector]
 >>> mydetectorarray = DetectorArray(
...     name='testdetector',
...     detector_array_list=mydetectorlist,
...     exposure_action=myexposureaction,
...     dark_current=DarkCurrent(value=2.0),
...     shot_noise=ShotNoise(state=True),
... qecurve=QuantumEfficiencyCurve(realfilename="QE_detector_H2RG.dat"),
... linearity=LinearityCurve(realfilename="FPA_linearity.dat"),
... )
Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   File
"/net/dataserver2/data/users/wjvriend/micado/miniconda3/envs/micadowise/lib/python3.9/site-packages/micado/main/MDBObjectMeta.py",
line 226, in __call__
     s = cls._construct_object_from_attributes(*args, **kwargs)
   File
"/net/dataserver2/data/users/wjvriend/micado/miniconda3/envs/micadowise/lib/python3.9/site-packages/micado/main/MDBObjectMeta.py",
line 618, in _construct_object_from_attributes
     s_existing = cls._find_existing(**kwargs)
   File
"/net/dataserver2/data/users/wjvriend/micado/miniconda3/envs/micadowise/lib/python3.9/site-packages/micado/main/MDBObjectMeta.py",
line 714, in _find_existing
     lenq = len(q)
   File
"/net/dataserver2/data/users/wjvriend/micado/miniconda3/envs/micadowise/lib/python3.9/site-packages/common/database/DBOracleSelect.py",
line 281, in __len__
     return self._use_env_directives()._length()
   File
"/net/dataserver2/data/users/wjvriend/micado/miniconda3/envs/micadowise/lib/python3.9/site-packages/common/database/DBOracleSelect.py",
line 289, in _length
     return database.execute_select(query, *self.param, **kwargs)[0][0]
   File
"/net/dataserver2/data/users/wjvriend/micado/miniconda3/envs/micadowise/lib/python3.9/site-packages/common/database/DatabaseOracle.py",
line 184, in execute_select
     cursor.execute(query, args)
cx_Oracle.DatabaseError: ORA-00904: "$"."detector_array_list": invalid
identifier

Zover ik kan zien queried MDBObjectMeta._find_existing() voor een bestaand object. Alleen detector_array_list is een lijst van objecten, en niet een direct attribuut waar je met cls.name == value op kan querien.

Kan ik de tussenlaag die MDBObjectMeta implementeerd uitschakelen?