imapsieve removeflag ignored

[Slavko]

Hi,

i have working SPAM reporting implementend by imapsieve in
debian's 2.3.13 dovecot.

Recently i decide to add personal spam filter by bogofilter and
use logic to learn/unlearn SPAM/HAM based on message flags.
Here is example of moving message from Junk folder (the
opossite logic is similar):

    if hasflag "$Junk" {
        execute :pipe "bogofilter" ["-Sn"];
        removeflag "$Junk";
        debug_log "Learned HAM (and unlearned)"; }
    else {
        execute :pipe "bogofilter" ["-n"];
        debug_log "Learned HAM (only)";
    }
    # mark as learned
    addflag "$NotJunk";

   report ...

When i move message, the debug lines in log shows, that
logic works and flag is added as expected, but the other
flag is not removed. Thus after moving mail from Junk, which
has $Junk flag, it has both flags, the $Junk and $NotJunk.

I tried to move removeflag action outside of condition and
add it just before addflag, but the result is the same.

For now i do not know if here is something wrong in my script,
or i did some other mistake. On IRC cmouse tell, that removeflag
was fixed in some early version (2.3.5 or so), but it doesn't work
here.

Please, how i can get it working?

regards

PS: please CC me, i am not subscribed

-- 
Slavko
https://www.slavino.sk/