Profanity crashes when blocking a MUC participant

[mdosch]

After blocking a MUC participant profanity crashes. See bt.

Expected Behavior

No crash.

Current Behavior

Profanity crashes with SIGABRT

Steps to Reproduce (for bugs)

Join a MUC (e.g. botkindergarten@conference.zombofant.net) and block a participant (e.g. /blocked add botkindergarten@conference.zombofant.net/feedbot)

Context

Environment

OS: Debian testing/sid (I was running sid during the freeze and am slowly going back to testing with some picks from sid)

profanity --version
Profanity, version 0.6.0dev.master.1bb05569
Copyright (C) 2012 - 2019 James Booth <boothj5web@gmail.com>.
Copyright (C) 2019 Michael Vetter <jubalh@iodoru.org>.
License GPLv3+: GNU GPL version 3 or later <https://www.gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Build information:
XMPP library: libstrophe
Desktop notification support: Enabled
OTR support: Disabled
PGP support: Enabled (libgpgme 1.12.0)
OMEMO support: Enabled
C plugins: Enabled
Python plugins: Enabled (2.7.16)
GTK icons: Enabled

prosodyctl about

Prosody hg:a36c731ed540

# Prosody directories
Data directory:     /home/md85/var/lib/prosody
Config directory:   /home/md85/etc/prosody
Source directory:   /home/md85/lib/prosody
Plugin directories:
  /home/md85/opt/prosody-modules/
  /home/md85/lib/prosody/modules/
  

# Operating system
Linux 2.6.32-754.15.3.el6.x86_64	

# Lua environment
Lua version:             	Lua 5.2

Lua module search paths:
  /home/md85/lib/prosody/?.lua
  /home/md85/.luarocks/share/lua/5.2/?.lua
  /home/md85/.luarocks/share/lua/5.2/?/init.lua
  /home/md85/share/lua/5.2/?.lua
  /home/md85/share/lua/5.2/?/init.lua

Lua C module search paths:
  /home/md85/lib/prosody/?.so
  /home/md85/.luarocks/lib/lua/5.2/?.so
  /home/md85/lib/lua/5.2/?.so

LuaRocks:        	Installed (2.4.3)

# Network

Backend: epoll

# Lua module versions
lfs:     	LuaFileSystem 1.7.0
libevent:	2.1.8-stable
luaevent:	0.4.6
lxp:     	LuaExpat 1.3.3
socket:  	LuaSocket 3.0-rc1
ssl:     	0.8

[jubalh]

My guess is that this has the same root cause as #1151
And has to do with freed handlers.

[mdosch]

Blocking and unblocking works now, but #1151 is not yet fixed (as you considered this related).

[jubalh]

Thanks! Yes, that's expected.