I think I have seen something quite similar to this bug. I made a fresh
report as Bug #1548226 which includes some valid symbolic stack traces.
Hopefully the developers will be able to use them to work on the issue.
Should this bug ticket be marked as a duplicate of Bug #1548226 as the
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: evolution (Ubuntu)
Status: New = Confirmed
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