imapsieve environment variables missing?

[MRob]

On 2016-12-05 04:38, Stephan Bosch wrote:
> Op 5-12-2016 om 13:28 schreef MRob:
>> RFC6785 says imap.user and imap.email environment variables should be 
>> made available but I can't access them no matter what I try. Are they 
>> not implemented because vnd.dovecot.environment already provides the 
>> username? (which does work for me)
>> 
>> If imap.user and imap.email are there, can you provide an example how 
>> to access them so I can see what I did wrong?
> 
> That should work.
> 
> Do you have an example script demonstrating what your trying to do?

Trying to access as a variable:

\${imap.user}

Also tried:

if environment :matches "imap.user" "*" {
   set "username" "${1}";
}

Also tried prefixing with "env." or removing "imap."

Result is always empty string (dumped with debug_log)

Script is run during COPY operations, newest tarball releases installed 
for dovecot and pigeonhole.