Drew Adams <drew.adams@oracle.com> writes:
>> To sum it up, the prompt is an unfortunate mistake, and maybe we could
>> protect against that, but I think the real problem comes from the
>> defcustom, which fails to provide a valid default value.
>
> Thanks for this explanation. Makes sense.
>
> Can we somehow help users by raising an error when they
> do this? Seems like a simple mistake to make.
I think it makes sense, but I'm not sure where would be the right place
to do it.