RCSB Search API: rcsb_cluster_membership -> 100 identity but with different `pdbx_seq_one_letter_code`

[NatureGeorge]

Describe the bug

as title said

To Reproduce

PDB('2d4q').rcsb_cluster_membership(entity_id=1, identity_cutoff=100).result()

	rcsb_id	score	cluster_id	identity	pdb_id	entity_id
0	2D4Q_1	1.0	34283	100	2d4q	1
1	2E2X_1	1.0	34283	100	2e2x	1

>>> PDB('2d4q').get_sequence(entity_id=1, mode='raw_pdb_seq').result()
>>> 'KEEFKALKTLSIFYQAGTSKAGNPIFYYVARRFKTGQINGDLLIYHVLLTLKPYYAKPYEIVVDLTHTGPSNRFKTDFLSKWFVVFPGFAYDNVSAVYIYNCNSWVREYTKYHERLLTGLKGSKRLVFIDCPGKLAEHIEHEQQKLPAATLALEEDLKVFHNALKLAHKDTKVSIKVGSTAVQVTSAERTKVLGQSVFLNDIYYASEIEEICLVDENQFTLTIANQGTPLTFMHQECEAIVQSIIHIRTRWELSQPD'
>>> PDB('2e2x').get_sequence(entity_id=1, mode='raw_pdb_seq').result()
>>> 'GAMTGSSKFEEFMTRHQVHEKEEFKALKTLSIFYQAGTSKAGNPIFYYVARRFKTGQINGDLLIYHVLLTLKPYYAKPYEIVVDLTHTGPSNRFKTDFLSKWFVVFPGFAYDNVSAVYIYNCNSWVREYTKYHERLLTGLKGSKRLVFIDCPGKLAEHIEHEQQKLPAATLALEEDLKVFHNALKLAHKDTKVSIKVGSTAVQVTSAERTKVLGQSVFLNDIYYASEIEEICLVDENQFTLTIANQGTPLTFMHQECEAIVQSIIHIRTRWELSQPD'
>>> PDB('2e2x').stats_protein_entity_seq().result()[0].ARTIFACT_INDEX
>>> [[1, 5]]

Expected behavior

same pdbx_seq_one_letter_code

---

• Version [0.2.6]

[NatureGeorge]

WithoutRCSBClusterMembershipWarning: polymer_entity(entry_id: "2lob", entity_id: "2") -> 
{'data': {'polymer_entity': {'rcsb_cluster_membership': None}}} 
(C:\GitWorks\pdb-profiling\pdb_profiling\processors\pdbe\record.py:1396)

[NatureGeorge]

cluster_id would change

cluster_id	entity_id	identity	pdb_id	rcsb_id	score
32101	1	100	2d4q	2D4Q_1	1.0
32101	1	100	2e2x	2E2X_1	1.0