calling compiled_circuits on qiskit_superstaq.superstaq_job.SuperstaqJob manually retrieved through a backend throws an exception

[CuriousCesium]

What is happening?

A Superstaq job (superstaq_job) was submitted to cq_hilbert_qpu backend.
I can view compiled circuit(s) associated with that job by calling superstaq_job.compiled_circuits(). No issue with that so far.

However, sometimes I want to check old superstaq jobs submitted days before, and for that I use

superstaq_job = backend.retrieve_job(<superstaq job id>)

But when I call self.compiled_circuits() on that job, I get the following exception raised:

AttributeError                            Traceback (most recent call last)
Cell In[95], line 1
----> 1 superstaq_job.compiled_circuits(index=0)

File ~/miniconda3/envs/superstaq/lib/python3.8/site-packages/qiskit_superstaq/superstaq_job.py:225, in SuperstaqJob.compiled_circuits(self, index)
    222         compiled_qc.metadata = in_qc.metadata
    223     return compiled_circuits
--> 225 compiled_circuit = self._get_circuits("compiled_circuit", index)
    226 input_circuit = self._get_circuits("input_circuit", index)
    227 compiled_circuit.metadata = input_circuit.metadata

File ~/miniconda3/envs/superstaq/lib/python3.8/site-packages/qiskit_superstaq/superstaq_job.py:184, in SuperstaqJob._get_circuits(self, circuit_type, index)
    181 if circuit_type not in ("input_circuit", "compiled_circuit"):
    182     raise ValueError("The circuit type requested is invalid.")
--> 184 job_ids = self._job_id.split(",")
    185 if not all(
    186     job_id in self._job_info and self._job_info[job_id].get(circuit_type)
    187     for job_id in job_ids
    188 ):
    189     self._refresh_job()

AttributeError: 'function' object has no attribute 'split'

How can we reproduce the issue?

See the problem description.

What should happen?

Use self._job_id().split(",") instead of self.job_id.pslit(",") ?

Environment

• Superstaq version:
• general-superstaq version: 0.4.29
• cirq-superstaq version: N/A
• qiskit-superstaq version: 0.4.29
• Operating system: Ubuntu 20.04.5 LTS
• Python version: 3.8.17
• Any other relevant dependencies:

Any additional context?

cq_hilbert_qpu backend was used.