Incorrect self nickname in History (Direct and Private)
Bug description
When viewing private conversations in group chats or direct conversations with myself (same nicknames, different resources) I see the nickname from my side as another nickname of a different account of mine which is in roster but not in use for weeks.
This also occurs with private messages in IRC conversations.
Steps to reproduce
Contact with darlan from gajim@conference.gajim.org with Account_1. Contact with darlan from gajim@conference.gajim.org with Account_2. Watch your history and see the nickname of Account_1 in conversations of Account_2.
Software versions
OS version: Salix OS 13.37 (Slackware 13.37 based)
GTK version: 2.24.4
PyGTK version: 2.22.0