shotwell crashed with SIGSEGV in g_signal_emit_valist()

[Carla Sella]

This happened after cropping an image.

ProblemType: Crash
DistroRelease: Ubuntu 15.04
Package: shotwell 0.20.2-0ubuntu3
ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
Uname: Linux 3.19.0-9-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.16.2-0ubuntu4
Architecture: amd64
CrashCounter: 1
CurrentDesktop: Unity
Date: Tue Mar 24 22:05:55 2015
ExecutablePath: /usr/bin/shotwell
InstallationDate: Installed on 2014-02-13 (403 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140211)
ProcCmdline: shotwell /home/username/Dropbox/Public/ttt/Screenshot\ from\ 2015-03-24\ 21:47:37.png
SegvAnalysis:
 Segfault happened at: 0x7f65834e0900: mov (%rdi),%rax
 PC (0x7f65834e0900) ok
 source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: shotwell
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/gtk-3.0/modules/libunity-gtk-module.so
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: shotwell crashed with SIGSEGV in g_signal_emit_valist()
UpgradeStatus: Upgraded to vivid on 2014-05-04 (324 days ago)
UserGroups: adm autopilot cdrom dip libvirtd lpadmin minidlna 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 #1431121, 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.