create two namespacestore on same target-bucket with different access-mode

[Alansyf]

Environment info

• NooBaa Operator Version: 5.13.0
• Platform: Kubernetes v1.22.3

Actual behavior

1. noobaa namespacestore create s3-compatible rw-ns-test --access-mode='read-write' --endpoint='https://objectstore-3.eu-de-2.cloud.sap' --secret-name='s3-secret' --signature-version='v4' --target-bucket='lis.devops.coll-1' This can be created.

Then I want another namespacestore for readOnly thus

noobaa namespacestore create s3-compatible ro-ns-test --access-mode='read-only' --endpoint='https://objectstore-3.eu-de-2.cloud.sap' --secret-name='s3-secret' --signature-version='v4' --target-bucket='lis.devops.coll-1'

But I am getting

INFO[0000]
INFO[0000] NamespaceStore Wait Ready:
INFO[0000] ⏳ NamespaceStore "ro-ns-test" Phase is "": waiting...
INFO[0003] ⏳ NamespaceStore "ro-ns-test" Phase is "Creating": TemporaryError Target already in use
INFO[0006] ⏳ NamespaceStore "ro-ns-test" Phase is "Creating": TemporaryError Target already in use
INFO[0009] ⏳ NamespaceStore "ro-ns-test" Phase is "Creating": TemporaryError Target already in use
INFO[0012] ⏳ NamespaceStore "ro-ns-test" Phase is "Creating": TemporaryError Target already in use
INFO[0015] ⏳ NamespaceStore "ro-ns-test" Phase is "Creating": TemporaryError Target already in use

i345633 ~  $ noobaa namespacestore list                                                                                                                                                                                                                    
NAME         TYPE            TARGET-BUCKET       PHASE      AGE
ro-ns-test   s3-compatible   lis.devops.coll-1   Creating   51s
rw-ns-test   s3-compatible   lis.devops.coll-1   Ready      1m33s

Why this is forbidden? One namespacestore for writing, the other one for reading, i don't see any potential concurrent issue here.