Empathy crashes when sending IRC "direct message" to IRC client CIRC (google chrome extension)

[heapifyman]

I'm using empathy to connect to IRC.

One of the participants in the one channel I am connecting to uses CIRC (a google chrome extension - https://chrome.google.com/webstore/detail/circ/bebigdkelppomhhjaaianniiifjbgocn?utm_source=chrome-app-launcher-info-dialog) as IRC client.

Whenever I try to send that user a direct message (using /msg command or richtclick -> Chat) empathy crashes it seems. At least I lose connection to the IRC channel.
Same thing happens, if that user sends me a direct message and I try to view it in empathy.

The problem does not occur in XChat for example.

Ubuntu 15.04
empathy 3.12.9-1ubuntu1.1

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: empathy 3.12.9-1ubuntu1.1
ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
Uname: Linux 3.19.0-21-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Jun 22 15:36:17 2015
InstallationDate: Installed on 2014-12-05 (198 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
JournalErrors: Error: command ['journalctl', '-b', '--priority', 'warning'] failed with exit code 1: No journal files were found.
ProcEnviron:
 LANGUAGE=de_DE
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: empathy
UpgradeStatus: Upgraded to vivid on 2015-04-24 (59 days ago)