Managesieve stopped working - Undefined symbol "i_stream_read_memarea"

[Henrik Larsson]

After upgrading Dovecot to 2.3.2.1 and Pigeonhole to 0.5.2, managesieve 
stopped working.

I'm using FreeBSD ports tree, to build these. Only domains have been 
modified in below output.

A FreeBSD bug report have also been created. But I'm not sure if this is 
FreeBSD ports related or Dovecot/Pigeonhole related:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=228067

%uname -a
FreeBSD 10.4-RELEASE-p9 FreeBSD 10.4-RELEASE-p9 #0: Sat Jul 14 22:38:37 
CEST 2018 /usr/obj/usr/src/sys/GENERIC  amd64

%pkg version -v
dovecot-2.3.2.1                    =   up-to-date with index
dovecot-pigeonhole-0.5.2_2         =   up-to-date with index

%dmesg -a
/usr/local/libexec/dovecot/managesieve: Undefined symbol 
"i_stream_read_memarea"
doveconf: Error: managesieve-login: dump-capability process returned 1

% dovecot -n
# 2.3.2.1 (0719df592): /usr/local/etc/dovecot/dovecot.conf
# Pigeonhole version 0.5.2 (7704de5e)
/usr/local/libexec/dovecot/managesieve: Undefined symbol 
"i_stream_read_memarea"
doveconf: Error: managesieve-login: dump-capability process returned 1
# OS: FreeBSD 10.4-RELEASE-p9 amd64
# Hostname: mail.example.com
auth_mechanisms = plain login
first_valid_uid = 125
hostname = mail.example.com
listen = *
log_path = /var/log/dovecot
mail_plugins = zlib
mail_privileged_group = postfix
mail_temp_dir = /var/db/dovecot
namespace compat {
   hidden = yes
   inbox = no
   list = no
   location =
   prefix = INBOX.
   separator = .
   type = private
}
namespace inbox {
   inbox = yes
   location =
   mailbox Drafts {
     special_use = \Drafts
   }
   mailbox "Sent Items" {
     special_use = \Sent
   }
   mailbox Spam {
     special_use = \Junk
   }
   mailbox Trash {
     special_use = \Trash
   }
   prefix =
   separator = .
   type = private
}
passdb {
   args = /usr/local/etc/dovecot/dovecot-sql.conf.ext
   driver = sql
}
plugin {
   fts = squat
   fts_squat = partial=4 full=10
   sieve = ~/.dovecot.sieve
   sieve_dir = ~/sieve
}
postmaster_address = postmaster at example.com
protocols = imap pop3 lmtp sieve
service auth-worker {
   user = $default_internal_user
}
service auth {
   unix_listener /home/mail/postfix/private/dovecot-auth {
     group = postfix
     mode = 0660
     user = postfix
   }
}
service lmtp {
   executable = lmtp -L
   unix_listener /home/mail/postfix/private/dovecot-lmtp {
     group = postfix
     mode = 0660
     user = postfix
   }
}
ssl_cert = </etc/ssl/example.com-chained.crt
ssl_dh =  # hidden, use -P to show it
ssl_key =  # hidden, use -P to show it
userdb {
   args = /usr/local/etc/dovecot/dovecot-sql.conf.ext
   driver = sql
}
protocol lmtp {
   log_path = /var/log/dovecot-deliver
   mail_plugins = zlib sieve
}
protocol lda {
   mail_plugins = zlib sieve
}
protocol imap {
   mail_max_userip_connections = 30
   mail_plugins = zlib imap_zlib
}