Misconfiguration in Connector registration can't be deleted

[tom-rm-meyer-ISST]

Not sure, if it's only backend or only frontend. Thus I placed it here.

Current Behavior

I got two partners on association INT:

• Control Unit Creator Incorp.
• Semiconductor Supplier Incorp.

Control Unit Creator Incorp. acts as Application Provider for both companies for one app.

I deployed the connectors accordingly and did the following incorrectly:

• Added managed connector registration for Control Unit Creator Incorp for supplier-edc's url
• Recognized it's wrong, but didn't first delete the wrong configuration
• Added managed connector registration for Semiconductor Supplier Incorp for supplier-edc's url

Only one managed connector is shown and CAN NOT be deleted.

Expected Behavior

Two managed connectors are shown and can be deleted OR registration doesn't pass if url is already in use for another BPNL

Steps To Reproduce

• Subscribe two companies to one company's application
• As application provider: register managed connectors incorectly
  • subscription of partner A with address of partner B
  • subscription of partner B with address of partner B
    -> problem: only one connector is registered, can't be deleted and no other connector may be registered for subscription.