I just tested the use case of…
- saving and sending an invite to an email address
- accepting the invite using that email address
- not approving the new user yet and repeating (1)
- get the following cryptic error:
An error occurred: There was a problem with your request.
I’m not sure what the history is here and why we don’t tell the person doing this that the user has been invited already. But at least it is not possible for the same email address to be invited multiple times once an approval process is underway.