Thanks for your bug report Michael.
Are you able to reproduce this bug?
If yes, it would be fine to generate a debug stack trace.
I have a debug build of the package here : http://www.cerkinfo.be/~kujo/xchat-gnome_0.11-0ubuntu3_i386.deb
** Changed in: xchat-gnome (Ubuntu)
Status: Unconfirmed => Needs Info
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segfaulted
https://launchpad.net/bugs/41445