gnucash crashed with SIGABRT in g_assertion_message()

[Colin Law]

Gnucash is effectively unusable, after opening it then within a few clicks it crashes. This is happening on two Wily systems. It was ok till a few days ago, so presumably an update during that time has caused it. Gnucash has not received an update.

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: gnucash 1:2.6.6-2ubuntu2
ProcVersionSignature: Ubuntu 4.2.0-11.13-generic 4.2.1
Uname: Linux 4.2.0-11-generic i686
ApportVersion: 2.19-0ubuntu1
Architecture: i386
CurrentDesktop: Unity
Date: Sun Sep 27 12:18:54 2015
ExecutablePath: /usr/bin/gnucash
InstallationDate: Installed on 2015-07-01 (87 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha i386 (20150609)
ProcCmdline: gnucash
ProcEnviron:
 PATH=(custom, user)
 SHELL=/bin/bash
 LANG=en_GB.UTF-8
 LANGUAGE=en_GB:en
 XDG_RUNTIME_DIR=<set>
Signal: 6
SourcePackage: gnucash
StacktraceTop:
 g_assertion_message () from /lib/i386-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () from /lib/i386-linux-gnu/libglib-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
 ffi_call_SYSV () from /usr/lib/i386-linux-gnu/libffi.so.6
 ffi_call () from /usr/lib/i386-linux-gnu/libffi.so.6
Title: gnucash crashed with SIGABRT in g_assertion_message()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1499575, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.