Model.deleteCascadeExcept() does not propagate excluded associations

[yanchevsky]

For example:

DOCTORS
(
                ID,
                FIRST_NAME,
                LAST_NAME
)
 
DOCTORS_PATIENTS
(
                ID,
                DOCTOR_ID,
                PATIENT_ID
)
 
PATIENTS
(
                ID,
                FIRST_NAME,
                LAST_NAME
)
 
PRESCRIPTIONS
(
                ID,
                NAME,
                PATIENT_ID
                DOCTOR_ID
)

In case

patient.deleteCascadeExcept(
                Doctor.getMetaModel().getAssociationForTarget(Prescription.class),
                Patient.getMetaModel().getAssociationForTarget(Prescription.class)
);

prescription (associated with doctor but not with patient) will be deleted.

Expectation: prescriptions for other patients should not be deleted