Problem:
There are some cases, in which the application behaves inconsistently/unintuitively:

• When removing given (already successfully validated) data, the bank name does not get cleared.
• When changing to another valid non-German bank account
  • the bank name remains in the section.
  • the BIC value is not being cleared.

Acceptance Criteria:

• When entering a valid German IBAN
  • validity indicator of all bank account data fields is turned into "valid"
  • the value of all other fields are supplemented based on the server-side determination
  • the bank name determined during server-side validation is being shown
• When entering valid non-German IBANs
  • validity indicator of the IBAN field is turned into "valid"
  • validity indicators of all other fields are turned into "neutral"
  • the value of all other fields are cleared
  • no bank name is being shown