You got a solution here which can be applied. The internal fixes are not usually highlighted but we get workarounds like this to be applied. it might be documented either as a part of SN problem record or change which initiated it. You will need to check the HI personnel about it or you could respond on your HI ticket asking if there are any impacts if we delete the property on our iDP redirection and based on his response you could take the necessary action. This is how we take action on similar product issues.