Latest HG Changes (fac92b5) affect Sieve-Plugin/LMTP

[Thomas Leuxner]

# 2.2.devel (c73322f): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.devel (fac92b5)
# OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.6 

==> /var/log/dovecot/dovecot.log <==
Oct 15 09:50:15 nihlus dovecot: lmtp(11447): Connect from local
Oct 15 09:50:15 nihlus dovecot: lmtp(tlx at leuxner.net): Panic: file lda-sieve-plugin.c: line 447 (lda_sieve_execute_scripts): assertion failed: (script != NULL)
Oct 15 09:50:15 nihlus dovecot: lmtp(tlx at leuxner.net): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x938ae) [0x7fd161fc18ae] -> /usr/lib/dovecot/libdovecot.so.0(+0x9399c) [0x7fd161fc199c] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fd161f5b6de] -> /usr/lib/dovecot/modules/lib90_sieve_plugin.so(+0x3af8) [0x7fd15fdf8af8] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver+0x49) [0x7fd16258bb39] -> dovecot/lmtp [DATA tlx at leuxner.net](+0x724e) [0x7fd1629bc24e] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7fd161fd5e4c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10a) [0x7fd161fd730a] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7fd161fd5ed5] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fd161fd6078] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fd161f61be3] -> dovecot/lmtp [DATA tlx at leuxner.net](main+0x1a2) [0x7fd1629ba382] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd161ba4b45] -> dovecot/lmtp [DATA tlx at leuxner.net](+0x5430) [0x7fd1629ba430]
Oct 15 09:50:15 nihlus dovecot: lmtp(tlx at leuxner.net): Fatal: master: service(lmtp): child 11447 killed with signal 6 (core not dumped)