METADATA help

[Marco]

Hello,

   I have some problems in Cyrus 3.0.13 with user defined metadata.

Let suppose I define in imapd.conf

	annotation_definitions: /etc/annoIMAP.conf

and annoIMAP.conf is:

/vendor/example/partition/comune.prova.it,server,string,backend,value.priv,lrswipkxtea

With this configuration all works fine with the old annotatemore 
"standard". I can set and read annotations.

But time will crawl, so I have to adopt the new METADATA standard 
(RFC5464) to manage these values.

If I try

a SETMETADATA "" (/private/vendor/example/partition/comune.prova.it 
"prova1")
a NO Permission denied

I have to do this to set the value:

a SETANNOTATION "" "/vendor/example/partition/comune.prova.it" 
("value.priv" "prova1")
a OK Completed


Now, with

a GETMETADATA "" "/private/*"
* METADATA "" ("/private/vendor/example/partition/comune.prova.it" 
"prova1" "/private/vendor/cmu/cyrus-imapd/squat" NIL 
"/private/vendor/cmu/cyrus-imapd/expire" NIL 
"/private/vendor/cmu/cyrus-imapd/usercounters" "3 0 0 0 0 0 0 0 0 0 0" 
"/private/vendor/cmu/cyrus-imapd/usermodseq" "0" "/private/comment" NIL 
"/private/admin" NIL)

but if I ask only my user defined metadata:
a GETMETADATA "" "/private/vendor/example/partition/comune.prova.it"
* METADATA "" ("/private/vendor/example/partition/comune.prova.it" NIL)

the server tell me NIL in place of "prova1".

I would ask an help with this protocol:

- I would like to know why SETMETADATA fails with "Permission denied" in 
above example.

- Then I have to know why a wildcard query show me the "prova1" value in
"/private/vendor/example/partition/comune.prova.it", but when I query 
only the value of "/private/vendor/example/partition/comune.prova.it" 
the answer is NIL.

Other detail:
name       : Cyrus IMAPD
version    : 3.0.13-6.el8
vendor     : Project Cyrus
support-url: https://www.cyrusimap.org
os         : Linux
os-version : 4.18.0-147.8.1.el8_1.x86_64
environment: Built w/Cyrus SASL 2.1.27
              Running w/Cyrus SASL 2.1.27
              Built w/OpenSSL 1.1.1c FIPS  28 May 2019
              Running w/OpenSSL 1.1.1c FIPS  28 May 2019
              Built w/zlib 1.2.11
              Running w/zlib 1.2.11
              CMU Sieve 3.0
              NET-SNMP
              mmap = shared
              lock = fcntl
              nonblock = fcntl
              idle = idled


Thank you very much
Kind Regards

Marco